1 . If x/y=4 and y is not '0' what % of x is 2x-y
2 . If m and n are two whole numbers and if m^n = 25. Find n^m, given that n ? 1
3 . A and B can finish a work in 12 days. B and C can finish the same work in 18
days. C and A can finish in 24 days. How many days will take for A, B and C
combined together to finish the same amount of work?
4 . Fathers age is 5 times his son's age. 4 years back the father was 9 times older than son.Find the fathers' present age.
5 . 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.
6 . Eight friends Harsha, Fakis, Balaji, Eswar, Dhinesh, Chandra, Geetha, and Ahmed are sitting in a circle facing the center. Balaji is sitting between Geetha and Dhinesh. Harsha is third to the left of Balaji and second to the right of Ahmed. Chandra is sitting between Ahmed and Geetha and Balaji and Eshwar are not sitting opposite to each other. Who is third to the left of Dhinesh?
7 . What is the number whose 30% is 150
8 . The length of the side of a square is represented by x+2. The length of the side of an equilateral triangle is 2x. If the square and the equilateral triangle have equal perimeter, then the value of x is _______.
9 . 2 litres of water evaporated from 6 litres of sugar solution containing 5% sugar,
what will be the percentage of sugar in the remaining solution.
10 . Two coal loading trucks handle 9000 tonnes of coal at an efficiency of
90% working 12 hours per day for 8 days. How many hours a day, 3 coal
loading trucks should work at an efficiency of 80% so as to load 12000 tonnes
of coal in 6 days.
11 . What is the max possible 3 digit prime number?
12 . There are 200 questions on a 3 hr examination.Among these questions are 50 mathematics problems.It is suggested that twice as much time be spent on each maths problem as for each other question.How many minutes should be spent on mathematics problems
13 . A father is now three times as old as his son. Five years ago. he was four times as
old as his son. Find their present age of father.
14 . The lowest temperature in the night in a city A is 1/3 more than 1/2 the highest during the day. Sum of the lowest temperature and the highest temperature is 100 degrees. Then what is the low temp?
15 . Today is 3rd November. The day of the week is Monday. This is a leap year. What
will be the day of the week on this day after 3 years?
16 . An army general trying to draw his 16,160 men in rows so that there are as
many men as true are rows, found that he had 31 men over. Find the number of
men in the front row.
17 . Find the least number with which you multiply 882, so that the product may be
a perfect square.
18 . 35% of a number is 175. What % of 175 is the number?
19 . A contractor undertook to do a piece of work in 125 days and employs 175
men to carry out the job, but after 40 days, he finds that one a quarter of the
work had been carried out. How many more men should be employed to
finish the work in time?
20 . Find the least number with which 1728 may be added so that the
resulting number is a perfect square.