Question 40

If 1!9 = -80, 2!8 = -60 and 8!1 = 70, then find the value of 3!2 = ?

Solution

Given : 1!9 = -80, 2!8 = -60 and 8!1 = 70

If we replace '!' with '-', and multiply the difference by 10, we get the desired result.

Eg :- $$(1-9)\times10=-80$$

and $$(2-8)\times10=-60$$ and $$(8-1)\times10=70$$

Similarly, $$(3-2)\times10=10$$

=> Ans - (D)

Share on Whatsapp Share on Whatsapp

Create a FREE account and get: