Q. The average age of three boys is 15 years. If their ages are in ratio 3:5:7, the age of the youngest...

MCQs: The average age of three boys is 15 years. If their ages are in ratio 3:5:7, the age of the youngest boy is:

9 years

18 years

21 years

27 years

Answer & Explanation

MCQs 1: In how many ways 4 boys and 3 girls can be seated in a row so that they are alternate.

140

144

122

188

Answer & Explanation

MCQs 2: The average of a group of men is increased by 5 years when a person aged of 18 years is replaced by a new person of aged 38 years. How many men are there in the group?

Answer & Explanation

MCQs 3: In a boat there are 8 men whose average weight is increased by 1 kg when 1 man of 60 kg is replaced by a new man. What is weight of new comer?

Answer & Explanation

MCQs 4: The average of 25 results is 18. The average of first 12 of those is 14 and the average of last 12 is 17. What is the 13th result?

Answer & Explanation

MCQs 5: If number x is 10% less than another number y and y is 10% more than 125, then find out the value of x.

123.55

123.65

123.75

123.85

Answer & Explanation

MCQs 6: In a party every person shakes hands with every other person. If there are 105 hands shakes, find the number of person in the party.

Answer & Explanation

MCQs 7: If x% of y is 100 and y% of z is 200, then find the relation between x and z..

z = x

2z = x

z = 2x

None of above

Answer & Explanation

MCQs 8: If 15% of 40 is greater than 25% of a number by 2, the number is .

Answer & Explanation

MCQs 9: A batsman scored 120 runs which included 3 boundaries and 8 sixes. What percent of his total score did he make by running between the wickets.

40%

50%

60%

70%

Answer & Explanation

MCQs 10: Three candidates contested an election and received 1136, 7636 and 11628 votes respectively. What percentage of the total votes did the winning candidate got

55%

56%

57%

58%

Answer & Explanation

MCQs: The average age of three boys is 15 years. If their ages are in ratio 3:5:7, the age of the youngest boy is:

MCQs 1: In how many ways 4 boys and 3 girls can be seated in a row so that they are alternate.

MCQs 2: The average of a group of men is increased by 5 years when a person aged of 18 years is replaced by a new person of aged 38 years. How many men are there in the group?

MCQs 3: In a boat there are 8 men whose average weight is increased by 1 kg when 1 man of 60 kg is replaced by a new man. What is weight of new comer?

MCQs 4: The average of 25 results is 18. The average of first 12 of those is 14 and the average of last 12 is 17. What is the 13th result?

MCQs 5: If number x is 10% less than another number y and y is 10% more than 125, then find out the value of x.

MCQs 6: In a party every person shakes hands with every other person. If there are 105 hands shakes, find the number of person in the party.

MCQs 7: If x% of y is 100 and y% of z is 200, then find the relation between x and z..

MCQs 8: If 15% of 40 is greater than 25% of a number by 2, the number is .

MCQs 9: A batsman scored 120 runs which included 3 boundaries and 8 sixes. What percent of his total score did he make by running between the wickets.

MCQs 10: Three candidates contested an election and received 1136, 7636 and 11628 votes respectively. What percentage of the total votes did the winning candidate got

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