In the following question, 3 statements are given. You have to find which is/are necessary and sufficient to answer the following question. Mohan travel from Delhi to Agra from train and he notices that with stoppages, he covers the total distance in 52.8 hours. He wants to calculate speed of the train without stoppages. Find the speed of the train excluding stoppages. Statement I∶ Distance between Delhi and Agra is 500 Km Statement II∶ The first stop lasts 2 minutes, second 4 minutes and others like this 6,8….100 minutes. Statement III∶ The train can cross the platform of stations between Delhi and Agra in 10 seconds each.?

Only statement I is sufficient
statement I and statement II are sufficient
statement I, statement II and statement III are sufficient
Only statement III is sufficient
None of these

LohaHridoy

8 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 2 : statement I and statement II are sufficient

Statement I

Let time without stoppages be x

Speed

⇒ 500/x

Statement II

⇒ (2 + 4 + 6 + 8…. + 100)/60 hours

⇒ 50 × (51/60)

⇒ 42.5 hours

X = 52.8 – 42.5

⇒ 10 hours

Required speed

⇒ 500/10

⇒ 50 kmph

Statement III

The data for train crossing a platform is not required here.

∴ statement I and statement II are sufficient to answer the question

8 views Answered 2022-09-04 04:29

Related Questions

A man covers a certain distance(in m) in 15 minutes and then covers a distance which is equal to three times of the previous distance in 45 minutes and again travels a distance twice the previous distance in 1 hour 30 minutes. If the average speed of the man is 50 m/min, then find the half of the total distance covered by man.?

1 Answers 4 Views

Below is given a question followed by four statements I, II, & III. The question may (or may not) be answered using any or more of the given statements. You have to decide which of these statement(s) is/are sufficient to answer the given question. Pick out the appropriate option. Find the value of x I. Kiran and Rajpal can do a piece of work in x days II. Mahesh is twice efficient then Kiran III. Kiran can do work in x + 80 days and Rajpal can do in x + 20 days?

1 Answers 5 Views

In the following question, 3 statements are given. You have to find which is/are necessary and sufficient to answer the following question. Anita, Morrison, Naveen, Pramod, Maria take part in a 1000 m race. Maria finishes the race in 180 secs. Is she the fastest of them all Statement I∶ Morrison covers 25 m for every 20 m covered by Anita. Statement II∶ Naveen takes 16 secs to cover a distance of 80 m. Also, Morrison covers 25 m for every 20 m covered by Naveen. Statement III∶ Pramod covers 40 m for every 25 m covered by Anita.?

1 Answers 9 Views

In the question below are given four statements followed by four conclusions numbered I, II, III and IV. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. Statements: Some police stations are hospitals. Some hospitals are schools. All hospitals are banks. Conclusions: I. Some banks are schools II. Some police stations are banks. III. Hospitals which are schools are also banks. IV. Schools which are banks are also hospitals.?

1 Answers 5 Views

In the following question, three statements are given. You have to find which is/are necessary and sufficient to answer the following question. Find the ratio of speeds of the lion, dog, and fox. Statement I∶ For every 10 jumps of the lion, the dog takes 7 jumps and the fox takes 12 jumps. Statement II∶ The lion, the dog, and the fox cover distances of 4 m, 12 m, and 3 m respectively in one jump. Statement III∶ The distance covered by the dog in 5 jumps, the distance covered by the lion in 15 jumps, and the distance covered by the fox in 20 jumps are equal.?

1 Answers 6 Views

In the following question 3 statements are given. You have to find which is/are necessary and sufficient to answer the following question. The ratio between the present ages of the Barkha and Mamta is 1 : 3. Find the present age of the Mamta. Statement I: Difference between the present ages of Neha and Barkha is 22 years. Statement II: The present age of Neha is 4 years less than thrice the present age of Barkha. Statement III: Difference between the present ages of the Mamta and Barkha is 26 years.?

1 Answers 6 Views

In the following question, three statements are given. You have to find which is/are necessary and sufficient to answer the following question. Find the speed of the boat in still water. Statement I: The boat goes twice the distance downstream in the same time, as it goes upstream. Statement II: Speed of the boat in still water is three times the speed of the current. Statement III: The boat goes 840 meters in 1 hour 10 minutes downstream.?

1 Answers 4 Views

Given below are two quantities named A & B. Based on the given information; you have to determine the relationship between the two quantities. You should use the given data and your knowledge of Mathematics to choose between the possible answers. Quantity A∶ Total number of ways in which 6 persons traveling in the train can deboard at 4 stations (Assuming that only one-person deboards at each of the first three stations and 3 persons deboard at last station) Quantity B∶ 85/3?

1 Answers 4 Views

The following questions have three statements. Study the question and the statements and decide which of the statement(s) is/are necessary to answer the question. There are some Executives and some Managers in an office. Total salary of all the employees is Rs. 576000. Find the total number of employees in the office. Statement I∶ 25% of the salary of a manager is Rs. 15000. Statement II∶ The ratio of number of Executives and Managers is 3 ∶ 2. Statement III∶ Total monthly salary of all the Executives is 40% less than total salary of all the Managers.?

1 Answers 5 Views

The following questions have three statements. Study the question and the statements and decide which of the statement(s) is/are necessary to answer the question. Find the speed of the stream. Statement I: The boat goes 360 km downstream and 420 km upstream in total 54 hours. Statement II: The boat takes 17 hours to cover a distance of 510 km downstream. Statement III: A boat goes thrice the distance downstream as it goes upstream in 1 hour.?

1 Answers 4 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)