Related Questions

The charge of a room at Sheraton is 25% less than that of a room at Westin and 10% less than that of a room at Sonargaon . By what percent is the charge of a room at Westin is greater than that of Sonargaon ?
ক 15%
খ 17%
গ 19%
ঘ 20%
If heater S is used on the third day and different heaters are used on the first and fourth days, then which heater is used on the first day?
ক P
খ Q
গ R
ঘ S
When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of the heater will
ক Decrease
খ Increase
গ Remain constant
ঘ None of the above
Most commonly used crude heater before the fractionation tower in a refinery is the __________ heater.
ক Electric immersion
খ Pipestill
গ Steam coil
ঘ None of these
The length of a room is 1.5 times of its breadth. If the area of the room is 216 sq. meter, what is the perimeter of the room?
ক 42
খ 48
গ 54
ঘ 60
In a room, all except 18 of the people are over 50 years of age. 15 of the people in the room are under 50 years of age. If 10% of the people are at the age of 50 years, how many people are in the room>
ক 27
খ 30
গ 33
ঘ 36
A room contains 200 people, 25% of whom are graduates. A group of people, 30% of whom are graduates, leave the room. Of the remaining people, 10% are graduates. How many people did leave the room?
ক 150
খ 145
গ 125
ঘ 120
The length of room is 1.5 times of its breadth. If the area of the room is 216 sq. meters , what is the perimeter of the room ?
ক 60 meter
খ 54 meter
গ 48 meter
ঘ 50 meter
The length of room is 1.5 times of its breadth. If the area of the room is 216 sq. meters, what is the perimeter of the room?
ক 60 meter
খ 54 meter
গ 48 meter
ঘ 50 meter
There are 5 doors to a lecture room. In how many ways can a student enter the room through a door and leave the room by a different door?
ক 10
খ 20
গ 9
ঘ 325

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