Question
Find the missing number in the given number series.
/> 4, 9, 20, 37, 60, ?Solution
ATQ,
Differences:
9 - 4 = 5
20 - 9 = 11
37 - 20 = 17
60 - 37 = 23
Differences are increasing by 6 each time.
Next difference = 23 + 6 = 29
Missing number = 60 + 29 = 89
Evaluate:
β729 + β49 - β16 + 1/β64
Simplify:

(1/5)(40% of 800 β 120) = ? Γ 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 β 20% of 5280) = ? Γ· 3
β157464 =?