# OSSSC COMBINED EXAM 2021 (MATH SET-1)

(Q-1) 2.09 can be expressed in terms of percentage ?

(A)2.09 %

(B) 20.9%

(C) 209%

(D) 0.209%

(Q-2) The sum of present age of Ashok, Anil and Ajay is 75 years. If 5 years ago the ratio of their age was 3:4:5. W  hat is the present age of Anil ?

(a)26

(b) 25

(c) 32

(d) 65

(Q-3) The side of a cube is 15m, find its surface area ? (in m sq.)

(a)1203

(b) 1350

(c) 1204

(d) 1960

(Q-4) Three numbers are in the ratio of 3:4:5 and their LCM is 2400. Their HCF is ?

(a)40

(b) 80

(c) 120

(d) 200

(Q-5) If each sides of a square is increased by 25%, find the % change in its area ?

(a)62.25

(b) 59.35

(c) 58.75

(d) 56.25

(Q-6) Ratio between two number is 3:4. and their sum is 420. find the smaller number ?

(a)240

(b) 180

(c) 160

(d) 140

(Q-7) What is the difference between the place value and face value of 3 in the numeral 1375 ?

(a)300

(b) 3

(c) 297

(d) 303

(Q-8) If LCM of two number is 693, HCF of two number is 11 and one number is 99, then another number is ?

(a)34

(b) 77

(c) 12

(d) 45

(Q-9)

Three fourth of a number is 60 more than its one third, the number is ?

(a)84

(b) 108

(c) 144

(d) None of these

(Q-9) What will be the LCM of 8, 24, 36, 54 ?

(a)54

(b) 108

(c) 216

(d) 432