Q. The average of 9 numbers is 30. The average of first 5 numbers is 24 and the last 3 number is 36. Then what is 6th number.
1) 20
2) 30
3) 42
4) 50
Q. The average weight of 20 student in a class is increased by 1 kg when one of the student weighting 30kg is replaced by a new student weight of new student is
1) 20
2) 30
3) 40
4) 50
Q. 15% of 10% of 20% of 1000 is
1) Rs. 1.50
2) Rs. 67
3) Rs. 150
4) Rs. 3
Q. The price of Petrol went up 205 in order the expenses on petrol should increase Ram must reduce travel by
1) 25
2) 30
3) 33.33
4) 16.67
Q. If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number?
1) 2:5
2) 3:7
3) 5:3
4) 7:3
Q. The total age of Mamta, Anita and Kavita is 51 years. What was their average age five years ago?
1) 12 years
2) 14 years
3) 17 years
4) 16 years
Q. What percentage of numbers from 1 to 70 have squares that end in the digit 1?
1) 1
2) 14
3) 20
4) 21
Q. The LCM of numbers 12, 18, & 24 is how much more than their HCF?
1) 66
2) 69
3) 70
4) 72
Q. The average of first five prime numbers is
1) .5.40
2) .5.70
3) .5.60
4) 5.80
Q. The average weight of 8 men is increased by 1.5 kg when one of them who weighs 65 kg is replaced by a new man. The weight of the new man is
1) .76 kg
2) .76.5 kg
3) .76.7 kg
4) 77 kg
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