Q. 795.0( 1 Vote )

Identify the greater number, in each of the following:

(a) 26 or 62

(b) 29 or 92

(c) 7.9 × 104 or 5.28 × 105

Answer :

(a) Let us find the values of each term,

26 = 2 × 2 × 2 × 2 × 2 × 2


= 4 × 4 × 4


= 64


62 = 36


So 26 is greater.


(b) 29 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2


= 8 × 8 × 8


= 512


92 = 81


So 29 is greater.


(c) 7.9 × 104 = 79, 000


5.28 × 105 = 5, 28, 000


So it is clearly seen that 5.28 × 105 is greater


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