Related Questions

In a Class of 120 students numbered 1 to 120, all even numbered students opt for Physics , those whose numbers are divisible by 5 opt for Chemistry and those whose numbers are divisible by 7 opt for Math. How many opt for none of the three subject ?
A 19
B 41
C 43
D 51
Among the 120 students of a class, numbered 1 to 120, all even numbered students opt for Bangla, whose numbers are divisible by 5 opt for English and those numbers are divisible by 7 opt for Math. How many opt for none of these three subjects?
A 19
B 41
C 57
D 26
In a set of three numbers, the average of first two numbers is 2. The average of the last two numbers is 3, and the average of the first and the last numbers is 4. What is the average of three numbers ?
A 3
B 6
C 9
D 24
Sum of 4 consecutive even numbers is greater than three consecutive odd numbers by 81 . If the sum of the least odd and even numbers is 59 then find the sum of largest of odd and even numbers is 59 then find the sum of largest odd and even numbers.
A 69
B 53`
C 65
D 72
In a set of 3 numbers, the average of first two numbers is 2, the average of the last two numbers is 3, and the average of the first and the last numbers is 4. What is the average of three numbers?
A 3
B 2
C 2.5
D 3.5
If k is divisible by 3, 9 and 12, which of the following is also divisible by these numbers?
A k + 15
B k + 35
C k + 45
D k + 72
If k is divisible by 2, 3 and 15, which of the following is also divisible by these numbers?
A k+5
B K+15
C K+20
D K+30
If a number 'x' is divisible by 4,5, and 15 which of the following is also divisible by these numbers ?
A x+4
B x+5
C x+15
D x+60
A, B, C, D and E are five consecutive numbers in increasing order of size. Deleting one of the five numbers from the set decreased the sum of the remaining numbers in the set by 20%. Which one of the following numbers was deleted?
A B
B A
C D
D C
The average of six numbers is 7 . If two of the six numbers are removed , the average of the remaining numbers is 8. What is the sum of the two numbers which were removed?
A 15
B 13
C 11
D 10

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