What should come in place of the question mark (?) in the following question ?
$$(49)^{2}\times(7)^{8}\div(343)^{3}=(7)^{?}$$
Let the required number be X.
So, $$(49)^{2}\times(7)^{8}\div(343)^{3}=(7)^{X}$$
Hence, $$7^4 \times 7^8 \div 7^9 = 7^X$$
Hence, $$7^{4+8-9} = 7^X$$
Therefore, $$7^3 = 7^X$$
Hence, $$X=3$$
Create a FREE account and get:
Day-wise Structured & Planned Preparation Guide
By proceeding you agree to create your account
Free CAT Schedule PDF will be sent to your email address soon !!!
