Question
If + means – , – means x , x means ÷ and ÷ means
+, then what will come in place of ? in the given equation? 7 ÷ 20 – 5 x 20 + 2 = ?Solution
The correct answer is A
- Find the value of the expression {(4096) n /4  × 8 3n + 1 }/{(512) n  × 8 n – 1 }.
In Δ ABC, ∠ B= 68° and ∠ C 32°. Sides AB and AC are produced to points D and E, respectively. The bisectors of ∠ DBC and ∠...
If [2a + (1/2a)] = 5, then find the value of [4a² + (1/4a²) - 6]
- If ab = -15 and (a 2  + b 2 ) = 34, then find the value of (a – b).
- If (r + s) = 7 and rs = 15, then find the value of (r² + s²).
Given that x = 80, y = -35 and z = -45, Determine the value of [(x³ + y³ + z³)/10³]
A boat covers a distance of 75 km downstream in 2.5 hours. If the ratio of upstream speed to downstream speed of the boat is 3:5, then find the distance...
- The ratio of M to N is 4:9, and that of N to O is 3:2. If the difference between O and M is 60, what is the total of M, N, and O?
If (x – 12)3 + (x – 5)3 + (x – 7)3 = 3(x – 12)(x – 5)(x – 7) then find the value of (x2 + 5x...