Question
Monthly income of A is Rs. 9600 and he saves 38% of his
monthly income. If monthly expenditure of A is decreased by 35% while his monthly savings is increased by 35% then find the increase or decrease in his monthly income.Solution
Monthly savings and expenditure of A initially is Rs. 3840 and Rs. 5760, respectively. Monthly expenditure of A now = 0.65 × 5760 = Rs. 5184 Monthly savings of A now = 1.35 × 3840 = Rs. 3744 Monthly income of A now = 5184 + 3744 = Rs. 8928 Desired percentage decrease = [(9600 – 8928)/9600] × 100 = 7%
7, 14, 42, 210, 1470, ?
A sequence {Vₙ} is defined for n ≥ 1 by:
I) For every n ≥ 3: Vₙ = 2Vₙ₋₁ − Vₙ₋₂ + 4
It is known that - V₃ = 22 and ...
12, 20, 36, ?, 132, 260
If 6 4 x 5.75 9,
Then, (x²-1) = ?
...12 13 30 �...
112 162 199 ? 242 252
...21 11.5 13 ? 45.5 116.75
...171, 173, 183, 213 , ‘?’, 411, 633.
114 106 102 100 99 ?
...Choose the correct alternative
21: 3 ∷ 574: ?
