Question
The ratio of cost prices of two articles ‘A’ and
‘B’ is 6:5 respectively and the average cost price of articles ‘A’ and ‘B’ is Rs. 1100. If articles ‘A’ and ‘B’ are sold at profit of 21% and profit of Rs. 200 respectively, then what is the average selling price of the given two articles?Solution
Let the cost price of articles ‘A’ and ‘B’ be Rs. 6y and Rs. 5y respectively Sum of cost price of articles ‘A’ and ‘B’ = 1100 × 2 = 2200 => 6y + 5y = 2200 => 11y = 2200 => y = 200 So, cost price of article ‘A’ = 6y = Rs. 1200 Cost price of article ‘B’ = 5y = Rs. 1000 Selling price of article ‘A’ = 1200 × (121/100) = Rs. 1452 Selling price of article ‘B’ = 1000 + 200 = Rs. 1200 So, average selling price of given two articles = (1452 + 1200) ÷ 2 = Rs. 1326
- What will come in place of (?), in the given number series.
1, 4, 9, 16, ?, 36 {(12√5 + 6√5 )} ×{(10√5 - 5√5 )} - 8² + 6² = ?
11          20          ?             64          112        192
...350 435 367 ? 384 401
...0, 6, 24, ?, 120, 210
21, 37, 73, 137, ?, 381
What will come in place of the question mark (?) in the following series?
4, 11, 32, 95, 284, 851, ?
18, 34, 70, 134, ?, 378
120, 136, 111, 147, ?, 162
What will come in place of the question mark (?) in the following number series?
124, 131, 117, ?, 110, 145
