Question 40

If 77 = 140, 61 = 70 and 35 = 80, then ﬁnd the value of 44 = ?

Solution

Given : 7*7 = 140, 6*1 = 70 and 3*5 = 80

If we replace '*' with '+', and multiply the sum by 10, we get the desired result.

Eg :- $$(7+7)\times10=140$$

and $$(6+1)\times10=70$$ and $$(3+5)\times10=80$$

Similarly, $$(4+4)\times10=80$$

=> Ans - (B)

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If 7*7 = 140, 6*1 = 70 and 3*5 = 80, then ﬁnd the value of 4*4 = ?