`(4+4×18−6−8)/(123×6−146×5)=?`   (a) 1         (b) 2         (c) 6.65        (d) 7.75

8-8xx(2(1)/(5)-1(2)/(7))/(2-(1)/(6-(1)/(6))) is equal to (a) 2(b)4(c)6 (d) 8

pH of acid rain is below (A) 5.6 (B)6 (C)6.5 (D)7

The L.C.M.of (3)/(4),(6)/(7),(9)/(8) is (a) 3 (b) 6(c) 9 (d) 18

If +=xx, - =+, xx=÷, ÷=- , then which is the correct equation out of the following? (A) 18+6-4xx2+3=114 (B) 18+6+4-2 div 3=22 (C ) 18-6xx7+2+8=63 (D) 18xx6-4+7xx8=50

pH of acid rain is below A) 5.6 B) 6 C) 6.5 D) 7

4(4)/(5)-:6(2)/(5)=?(3)/(4) (b) (5)/(7) (c) (5)/(8)(d)(7)/(11) (e) None of these

Solve 2.5xx4.8+7.2xx1.5-1.2xx14=? (a) 1.2(b)6.5(c)4(d)4.8(e)6

[(8(3.75)^(3)+1)/((7.5)^(2)-6.5)] is equal to: (9)/(5)(b)2.75 (c)

By how much does (6)/(7/8) exceed (6/7)/(8)?6(1)/(8) (b) 6(3)/(4)(c)7(3)/(4) (d) 7(5)/(6)