How many eggs?

Picture down below

:D

27

Step-by-step explanation:

27 is less than 40 and 2+7 = 9. It's also and odd number. 18 isn't it, even though the digits in the number add up to 9, because it's even.

All multiples of 9 have digits that add up to 9. All the rest are above 40 or even so you can eliminate them all right away.

for this case we have the following expression:

to solve, we rewrite the expression as:

we apply double c and we have:

thus, the quotient is 48.

so, patel found a wrong ratio and the multiplication was incorrect.

option d

47 - 90 = 43

43 - 180 = x

x = 137