Q. The average age of a class of 22 students is 21 years. The average age increases by 1 year when the teacher's age is also included. What is the age of the teacher ?
1) 48 years
2) 45 years
3) 43 years
4) 44 years
Q. If 0.75 : X :: 5 : 8, then value of X is -
1) 1.12
2) 1.20
3) 1.25
4) 1.30
Q. If 20% of a = b, then b% of 20 is the same as -
1) 4% of a
2) 5% of a
3) 20% of a
4) 25% of a
Q. The average of four positive integers is 73.5. The highest integer is 108 and the lowest integer is 29. The difference between the remaining two integer is 15. Which of the following is the smaller of the remaining two integers?
1) 80
2) 86
3) 73
4) None of these
Q. Mr. Deepak invested an amount of Rs. 21,250 for 6 yrs. At what rate of simple interest will he obtain the total amount of Rs. 26,3501 at the end of 6 years?
1) 6 p.c.p.a.
2) 5 p.c.p.a.
3) 12 p.c.p.a.
4) None of these
Q. The difference between a two digit number and the number obtained after interchanging the two digits of the two number is 27. The sum of the two digits of the two digit number is 15. What is the two digit number?
1) 87
2) 96
3) 69
4) 78
Q. 8195 ÷ 745 + ? x 12 = 7847
1) 648
2) 593
3) 601
4) 653
Q. The difference between 75% of a number and 20% of the same number is 378.4. what is 40% of that number?
1) 275.2
2) 274
3) 267.2
4) 266
Q. What should come in place of the question mark (?) in the following number series?
3 3 12 108 ? 43200
1) 2700
2) 1728
3) 972
4) 432
Q. What approximate value should come in place of the question mark (?) in the following question?
4123 ÷ (2.3)2 - 466 = ?
1) 401
2) 441
3) 301
4) 333
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