`(96. 54-89. 63)/(96. 54+89. 63)-:(965. 4-896. 3)/(9. 654+8. 963)=?` `10^(-2)` (b) `10^(-1)` (c) `10` (d) None of these

74844-:?=54xx63(a)22(b)34(c)42(d)54(e) None of these

(3)/(5) of (4)/(7) of (5)/(9) of (21)/(24) of 504=?( a) 63 (b) 69 (c) 96 (d) 109 (e) None of these

The L.C.M.of (1)/(3),(5)/(6),(2)/(9),(4)/(27) is (1)/(54) (b) (10)/(27) (c) (20)/(3)( d) None of these

If (x-1)/(x)=3, then the value of 1+(1)/(x^(2)) is (a) 9(b) 10(c)11 (d) None of these

A rational number equal to (-2)/3 is (a) (-10)/(25) (b) (10)/(-15) (c) (-9)/6 (d) None of these

726.34+888.12-?=1001.88(a)602.64 (b) 618.78 (c) 621.58 (d) 654.54(e) None of these

10, 25, 45, 54, 60, 75, 80 (a) 10 (b) 45 (c) 54 (d) 75

Sum of n terms of the series 8 + 88 + 888 + .... equals (a) 8/81 [10^(n+1) - 9n - 10] (b) 8/81[10^n - 9n -10] (c) 8/81[10^(n+1) - 9n + 10] (d)none of these

The relative humidity (in % ) of a certain city for a month of 30 days was as follows: 98.1 98.6 99.2 90.3 86.5 95.3 92.9 96.3 94.2 95.1 89.2 92.3 97.1 93.5 92.7 95.1 97.2 93.3 95.2 97.3 96.2 92.1 84.9 90.2 95.7 98.3 97.3 96.1 92.1 89 What is the range of this data?

Evaluate : ((6.4)^(2)-(5.4)^(2))/((8.9)^(2)+(8.9xx2.2)+(1.1)^(2))