TCS Numbers and Decimal Fraction Quiz-1

? = (1.1 + 1.1 + 1.1 + 1.1) x 1.1 x 1.1/0.121
= (4.4 x 1.1 x 1.1)/0.121 = 42.553

=>0.3x10^-3

=>0.3/1000

=>0.0003Ans.

Video solution:

= (9.99 x 9.9 x 9)/(9.9 x 0.9 x 0.3) = 3.33

12^4.5 x 12^a = 12^5.6 x 12^1.8

=>12^a =(12^5.6 x 12^1.8)/12^4.5

=>12^a=12^7.4/12^4.5

=>12^a=12^2.9

=>a=2.9

Video solution:

=>789.009-x+56.84=215.943

=>x = 789.009+56.84-215.943

=>x = 845.849-215.943

=>x =629.006Ans.

Video solution:

5/8 = .625, 7/12 = .5833, 3/4 = .75, 13/16 = .8125

So order will be
7/12 < 5/8 < 3/4< 13/16

Video solution:

Required decimal=

In one hour =1/60×60=1/3600 sec =.00027

 

Video solution:

Explanation : 1000 =14.4/x

         x=14.4/1000

          = 0.0144

Video solution:

Fraction form of 0.0056 = 0.0056 / 1

Multiplying 1000 in numerator and denominator

(0.0056 x 10000)/(1 x 10000)

=>56/10000 (divide both numerator and denominator by 8)

=>7/1250

Video solution: