Question
59.68% of √400 × 123.95 =
? What will come in place of question marks ‘?’ in the following questions? (You do not have to calculate the exact value)Solution
59.68% of √400 × 123.95 = ? => ? = 60% of 20 × 124 => ? = 12 × 124 => ? = 1488
(15 x 15 x 15 + 8 x 8 x 8)/(15 x 15 -15 x 8 + 8 x 8) = ?
- If (680 – 640 + 220) ÷ 12 + √2025 = x, then {(x/2) + 12} = ?
If (528 – 507 + 195) ÷ 11 + √1296 = x, then {(x/2) + 10} = ?
A dishonest dealer claims to sell goods at cost price but uses a false weight of 900g instead of 1kg. What is his profit percentage?
If (5x - 2y) = 170 and 4x:3y = 32:9, then find the value of (3x² + y²).
If  a 2 + b 2 + c 2 = 40 & ab + bc + ca = 12 then a + b+ c = ?
For a =-4 and b = 5, value of a² – b² is:
If (m + n) = 9 and mn = 14, then find the value of (m² + n²).
If x = 35, then the value of x5 - 36x4 + 36x3 - 36x2 + 36x - 1 is
If 2x + (1/9x) = 5, then find the value of 81x2Â + (1/4x2) - (1785/4)