Question
How many such pair(s) of letters are in the word
âWATERMELONâ which has as many letters between them (both forward and backward) as in the English alphabetical series?Solution
There are three such pairs of letters (NO, NW, OW, LN and  RT) in the word WATERMELON, which have the same number of letters between them as in alphabetical series.
Evaluate:
â729 + â49 - â16 + 1/â64
Simplify:

(1/5)(40% of 800 â 120) = ? Ă 5
2/5 of 3/4 of 7/9 of 7200 = ?
`sqrt(5476)` + 40% of 1640 = ? `xx` 4 - 2020
? = (22% of 25% of 60% of 3000) + 21
Determine the simplified value of the given mathematical expression.
(342 â 20% of 5280) = ? á 3
â157464 =?