RRB Paramedical Staff Nurse Model Paper 5

Question : 43 of 100

Marks: +1, -0

What should come in place of question mark (?) in the following questions?

Solution:

(7)^{8.4}÷(49)^{0.7}=(7)^{7+3}÷(343)^{3}

(7)^{8.4}{/} 7^{1.4}=(7)^{?+3(7) 9}

(7)^{8.4-1.4}=(7)^{?+3-9}

(7)^{7}=(7)^{?-6}

?-6=7

?=13

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