Solve the following and check with the answers given at the end.
1. It was calculated that 75 men could complete a piece of work in 20 days. When
work was scheduled to commence, it was found necessary to send 25 men to
another project. How much longer will it take to complete the work?
2. A student divided a number by 2/3 when he required to multiply by 3/2. Calculate the
percentage of error in his result.
3. A dishonest shopkeeper professes to sell pulses at the cost price, but he uses a false
weight of 950gm. for a kg. His gain is ...%.
4. A software engineer has the capability of thinking 100 lines of code in five minutes
and can type 100 lines of code in 10 minutes. He takes a break for five minutes after
every ten minutes. How many lines of codes will he complete typing after an hour?
5. A man was engaged on a job for 30 days on the condition that he would get a wage
of Rs. 10 for the day he works, but he have to pay a fine of Rs. 2 for each day of his
absence. If he gets Rs. 216 at the end, he was absent for work for ... days.
6. A contractor agreeing to finish a work in 150 days, employed 75 men each working 8
hours daily. After 90 days, only 2/7 of the work was completed. Increasing the
number of men by ________ each working now for 10 hours daily, the work can be
completed in time.
7. what is a percent of b divided by b percent of a?
(a) a (b) b (c) 1 (d) 10 (d) 100
8. A man bought a horse and a cart. If he sold the horse at 10 % loss and the cart at 20
% gain, he would not lose anything; but if he sold the horse at 5% loss and the cart at
5% gain, he would lose Rs. 10 in the bargain. The amount paid by him was Rs.-
_______ for the horse and Rs.________ for the cart.
9. A tennis marker is trying to put together a team of four players for a tennis
tournament out of seven available. males - a, b and c; females - m, n, o and p. All
players are of equal ability and there must be at least two males in the team. For a
team of four, all players must be able to play with each other under the following
restrictions:
b should not play with m,
c should not play with p, and
a should not play with o.
Which of the following statements must be false?
1. b and p cannot be selected together
2. c and o cannot be selected together
3. c and n cannot be selected together.
10-12. The following figure depicts three views of a cube. Based on this, answer
questions 10-12.
3 6
10. The number on the face opposite to the face carrying 1 is _______ .
11. The number on the faces adjacent to the face marked 5 are _______ .
