1 . A boy rides his motorcycle 45 km at an average rate of 25 km/hr and 30 km at
an average speed of 20 km/hr. What is the average speed during the entire trip of
2 . A motorist travels from P to Q in the rate of 30 km/hr and returns from Q to P at
the rate of 45 km/hr. If the distance PQ = 120 km. Find the average speed for the
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 can run a km in 3 min and 54 sec and B can run the same distance in 4 min
and 20 sec. By what distance can A beat B?
5 . The sum of the digits of a two digit number is 8. When 18 is added to the number, the digits are reversed. Find the number?
6 . Five years ago, the average of Raja and Rani?s ages was 20 yrs. Now the average
age of Raja, Rani and Rama is 30 yrs. What will be Rama?s age 10 yrs hence?
7 . A salesperson by mistake multiplied a number and got the answer as 3, instead of dividing the number by 3.What is the answer he should have actually got?
8 . In 8*8 chess board what is the total number of squares
9 . Wind flows 160 miles in 330 min, for travelling 80 miles how much time does it require?
10 . A 5 litre jug contains 4 litres of a salt water solution that is 15 percent salt. If 1.5 litres of the solution spills out of the jug, and the jug is then filled to capacity with water, approximately what percent of the resulting solution in the jug is salt?
11 . A student divided a number by 2/3 when he required to multiply by 3/2. Calculate the percentage of error in his result.
12 . An investor purchased a shares of stock at a certain price.If the stock increased in price Rs 0.25 per share and the total increase for the x shares was Rs 12.50, how many shares of stock had been purchased ?
13 . A train 300 m. long passes a pole in 15 sec. Find the speed.
14 . 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.
15 . A can copy 50 papers in 10 hours while both A & B can copy 70 papers in 10 hours. Then for how many hours required for B to copy 26 papers?
16 . In a race A has a start of 100mtrs and sets off 6 min before B, at the rate of 10
km/hr. How soon will B overtake A, if his speed of running is 12 km/hr.
17 . In how many different ways can the letters of the word 'DETAIL' be arranged in such a way that the vowels occupy only the odd positions?
18 . A man left Rs.1750 to be divided among his two daughters and four sons. Each
daughter was to receive three times as much as a son. How much did each son receive?
19 . If every alternative letter starting from B of the English alphabet is written in small letter, rest all are written in capital letters, how the month ? September? be written.
20 . A coffee shop blends 2 kinds of coffee,putting in 2 parts of a 33p. a gm. grade to 1 part of a 24p. a gm.If the mixture is changed to 1 part of the 33p. a gm. to 2 parts of the less expensive grade,how much will the shop save in blending 100 gms.