Given : 2%1 = 30, 6%2 = 80 and 2%5 = 70
If we replace '%' with '+', and multiply the sum by 10, we get the desired result.
Eg :- $$(2+1)\times10=30$$
and $$(6+2)\times10=80$$ and $$(2+5)\times10=70$$
Similarly, $$(4+1)\times10=50$$
=> Ans - (B)
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