A carpenter lays x bricks per hour for y hours and then lays x/2 bricks per hour for 2y more hours. In terms of x and y, how many bricks did he lay in total?
Answer: 2xy
Explanation
In the first y hours, the carpenter lays xy bricks.
In the 2y hours thereafter, he lays (x/2)(2y) = xy bricks.
Altogether, that's xy + xy = 2xy bricks.
This question appeared in
Past Papers (4 times)
PPSC 5 Years Past Papers Subject Wise (Solved with Details) (2 times)
PPSC Assistant Past Papers PDF (1 times)
PPSC Past Papers (1 times)
This question appeared in
Subjects (1 times)
MATHS MCQS (1 times)
Related MCQs
- A mason lays 280 bricks in 4 hours, how many bricks will he lay in 9 hours?
- Choose the correct sentence: Our home is built of bricks., Our home is built with bricks., Our home is built of bricks., Our home is built from bricks., None of these
- Choose the correct sentence. Our home is built with bricks OR Our home is built of bricks
- A group of five clerks has been assigned to insert 24,000 letters into envelopes. The clerks perform this work at the following rates of speed: Clerk A, 1100 letters an hour; Clerk B, 1450 letters an hour; Clerk C, 1200 letters an hour; Clerk D, 1300 letters an hour; Clerk E, 1250 letters an hour. At the end of two hours of work, Clerk C and D are assigned to another task. From the time that Clerks C and D were taken off the assignment, the number of hours required for the remaining clerks to complete this assignment is?
- Five books A, B, C and E have to be proofread in 6 hours where one hour needs to be spent per book. i. A break of one hour has to be taken in the third or the fourth hour. ii. The proofreading cannot start with A and has to end in C. iii. D has to immediately follow B with no break in-between. iv. A cannot be done immediately after D. v. A has to immediately proceed E with no break in-between. Q. Which hour is the break?
- A boy walked for 1/2 hours and then got a bus for 1/3 of an hour what part of an hour did the entire trip take
- Twelve men take 6 hours to finish a piece of work. After the 12 men have worked for 1 hour, the contractor decides to call in 8 more men. How many more hours would 20 men take to complete the remaining work?
- The idiom "like a cat on hot bricks" means what?
- A place where bricks? are backed:
- The man lived in a dilapidated house made of mud and bricks.
