Question
A2 type ‘P’ pipes can fill a tank in 525
hours, while B2 type ‘Q’ pipes can fill the same tank in 756 hours. (9A × 5B) type ‘P’ pipes can fill the same tank in how many hours? (Efficiency of a type P and a type Q pipe is same)Solution
A2 × 525 = B2 × 756 A2/B2 = 756/525 A2/B2 = 36/25 A/B = 6/5 A = 6B/5 (9A × 5B) type 'P' pipes = 9 × 6B/5 × 5B = 54 B2 Required time = (B2 × 756)/(54 × B2) = 14 hrs
Which of the following day is off?
L, K, J, H, G, F, D, and S live on eight different floors of the same building. The lowermost floor in the building is numbered 1, the floor above it, n...
Which of the following combination is not true?
Firoj was in which of the following rows?
Four of the five among the following are similar in such a way to form a group, which one of following doesn’t belong to the group?
...How many such pair(s) of letters are in the word “PROGRESS” which has as many letters between them (both forward and backward) as in the English alp...
In which of the following floor does Peter lives in a building?
Who among the following live on the topmost floor?
How many floors are there between O and person who likes Blue?
How many persons are sitting between Q and X when counted to the left of Q?
