Q. In a School, the ratio of the number of boys to girls is 6: 7. If there are 140 girls, the total number of students in the college is:
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Q. The compound interest on 30,000 at 7% per annum for a certain time is 4,347. The time is ?
Q. The area covered by a square is 308 square cm. The length of the diagonal of the square is.
Q. The fourth proportional to 5, 8, 15 is:
Q. The LCM of two numbers is 1890 and their HCF is 30. If one of them is 270, the other will be
Q. 794.99 ÷ 15.001 + 768.025 ÷ 12.012 – 1273.025 ÷ 18.999 = ?
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