Question
The average age of a group of 10 students is 20
years. Two persons of age 25 years and 20 years, left the group and 2 persons of age 26 years and 29 years, joined the group. Find the new average age of the group.Solution
Required average = {(10 × 20) – 25 – 20 + 26 + 29}/10 = 21 years
√729 × 5 + 270 - 3 ÷ ∛27 + 4 × ? = 484
168Â Â Â Â Â 163Â Â Â Â Â Â 153Â Â Â Â Â Â 138Â Â Â Â Â 118Â Â Â Â Â ?
...What will come in the place of question mark (?) in the given expression?
65% of 900 - 45% of 600 = ? X 3Â
Simplify the following expressions and choose the correct option.
(72 ÷ 3) × (5/6) + 7² = ?
?% of 740 – 8% of 650 = 7.2
- Find the simplified value of the given expression.
What will come in the place of question mark (?) in the given expression?
{(2/15) + (12/25)} of 375 + 190 = ?% of 375
(3984 ÷ 24) x (5862 ÷ 40) = ?
What will come in the place of question mark (?) in the given expression?
(72 × 6 ÷ 12) × 6 = ?
What value should come in the place of (?) in the following questions?
√16 * ? = √144 + (18 * 4 ÷ 3)
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