Question
A started a business with an investment of Rs.30000.
After few months B joined him with an investment of Rs.42000. If at the end of the year, they share the profit in the ratio of (A:B) 7:10, then find after how much time B joined the business?Solution
Let B invested for ‘m’ months. According to the question, => (30000 x 12)/(42000 x m) = 10/7 => m = 6 months So, the required time = 12 – 6 = 6 months
14.99% of 7820 + 5535.25 ÷ 123.001 - ? = 84
18.22 × 11.99 + 154.15 = ?
 (3/5) of 3025 + (18² + 12²) = ? + 22.22% of 1125
5.25 x 4.09 + 3.99 x 9.67 + 6.01 x 14.88 = ?
? = 16.08 + 13.99 × 25.07
20.99 × √4.09 × 30.09 = ? × √195.99 × 15.09
1279.98 ÷ 40.48 × 10.12 = ? × 2.16
30.01 × √1023 + 196 = ? 2 – 287
?% of (150.31 ÷ 14.97 × 50.011) = 319.98