Q41. Two numbers are in the ratio 2:9. If 10 be added to each, they are in the ratio of 3:10. The numbers are

• 20 and 90
• 2 and 9
• 6 and 27
• 8 and 36

Q42. The average of first 10 natural numbers is :

• 4.5
• 5
• 5.5
• 6

Q43. 3 litres of water is added to 15 litres of alcohol-water solution containing 40% alcohol strength. The strength of alcohol in new solution will be:

• 30%
• 33*1/3
• 33*2/3
• 33%

Q44. A bag containing only blue, red and green marbles. All but 15 are blue, all but 13 red and all but 22 are green. How many green marbles are there?

• 8
• 12
• 3
• 10

Q45. If 50% of x= 3y and 25% of y = 10, then the value of x is :

• 100
• 125
• 240
• 120

Q46. Find the missing number in the series given below: 17, 19, 23, 29, 31, ____, 41, 43, 47.

• 33
• 37
• 38
• 39

Q47. Two trains of equal length takes 10 seconds and 15 seconds respectively to cross a telegraph post. If the length of each train be 120 m, in what time will they cross each other traveling in opposite direction?

• 9 seconds
• 10 seconds
• 11 seconds
• 12 seconds

Q48. At the end of a birthday party ,8 persons present in the party shake hands with each other. How many handshakes will there be altogether?

• 26
• 30
• 28
• 32

Q49. The ratio between two numbers is 2:3. If their L.C.M is 150 then the numbers are

• 30, 40
• 48, 64
• 60, 75
• 50, 75

Q50. A man sold two commodities for Rs. 99 each. On one he gains 10% and on the other he loses 10%. Find his gain or loss percent in the whole transaction.

• 10% Loss
• 10% gain
• 1% Loss
• 1% gain