Question
The average height of three boys is 170 cm. If their
heights are in the ratio 6:4:7, what is the height of the tallest boy?Solution
Sum of height of boys = 3 × 170 = 510 cm
Let the height of three boys be ‘6x’ cm, ‘4x’ cm and ‘7x’ cm.
So, 6x + 4x + 7x = 510
So, x = 30
Height of tallest boy = 7x = 7 × 30 = 210 cm.
`[(sqrt(750) xx15.981) -: 54.003]` `xx` ? = 6997.81001
15.08% of (133.13 + 146.928) + 8.033 - (8.98 of 6.01) = ? of (46.09 - 20.98)
(95.89% of 625.15 + 36.36% of 499.89) ÷ 6.02 = ? – 269.72
Find the approximate value of Question mark(?). There is no requirement to find the exact value.
(2999.77 ÷ 74.85) + (√624.95 × 4.09) = ?
...? = 38.97² ÷ (3.99⁵ + 5.89 × 107.32) + 58.24% of (512.12 × 21.07)
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
2√574 + 19.956% of 1449.978 = ?% of 628.08
(24.98)2 = ?2 + (14.99)2
21% of 6600 + 453.987 =?
Relevant for Exams:
