Q. The average age of 25 girls in a class is 15.6 years. 10 new boy join the class and the new average become 16.6 years. What was the average age of 10 new boys?
1) 18
2) 20.1
3) 19.1
4) 14.1
Q. Kohli makes score of 125 runs in his 21st inning and thus increase his average by 4. What is his average after 21st inning?
1) 42
2) 55
3) 35
4) 45
Q. If the price of book is increased by 30% and again increased by 20% then what will be net effect.
1) 50%
2) 10%
3) 55%
4) 56%
Q. If the price of a shirt is increased by 25% and then decreased by 20% and then decreased by 30% then what will be net effect.
1) 12% increase
2) 12% decrease
3) 12.5% increase
4) 12.5% decrease
Q. The average marks of a student in 20 papers are 73. If the highest and lowest marks not considered then the average marks become 72. If the lowest marks is 45 then what is highest marks.
1) 119
2) 117
3) 130
4) 145
Q. The average of 15 numbers is 42.2 latter it is found that 3 numbers are wrongly added. First 42 less than the actual number second 21 instead of 12 and third 31 instead of 13.
1) 40.2
2) 41.2
3) 45.2
4) 55
Q. The sum of 5 consecutive even numbers P, Q, R, S, and T is 210. What is the product of A and E.
1) 1735
2) 1768
3) 1745
4) 1728
Q. Nutan got 456 marks in an exam. Aditya got 54% marks in same exam which is 24 less than Nutan. The minimum passing marks in exam in 35%. Then how much marks got Nutan more than Passing marks.
1) 280
2) 456
3) 180
4) 176
Q. Three class A, B, C of Bank Power gave math test. The average score of class A is 83. The average score of class B is 76 the average score of class is C is 85. The average score of class A and B is 79 and average score of class B and C is 81 years. What is the average score of class A, B and C.
1) 80
2) 81.5
3) 84.3
4) 85.5
Q. 1200 boy and 650 girls appeared in examination. If 70% of boy and 40% of girls failed. Find the approximate percentage of passed students.
1) 30%
2) 41%
3) 50%
4) can't determine
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