Question
Select the correct combination of mathematical signs
that can sequentially replace the sign * and make the equation correct. 3 * 12 * 4 * 5 * 4 * 116Solution
1) 3 * 12 * 4 * 5 * 4 * 116 3 x 12 + 4 x 5 x 4 = 116 36 + 80 = 116 116 = 116 2) 3 * 12 * 4 * 5 * 4 * 116 3 x 12 ÷ 4 + 5 ÷ 4 = 116 3 x 3 + 1.25 = 116 9 + 1.25 = 116 10.25 ≠ 116 3) 3 * 12 * 4 * 5 * 4 * 116 3 x 12 – 4 + 5 ÷ 4 = 116 3 x 12 – 4 + 1.25 = 116 36 – 4 + 1.25 = 116 33.25 ≠ 116 4) 3 * 12 * 4 * 5 * 4 * 116 3 x 12 – 4 – 5 = 4 + 116 36 – 4 – 5 = 116 27 ≠ 116
The sum of three numbers is 212. If the ratio of the first to the second is 3:5 and that of second to the third is 7:10 then the second number is?
- If ‘A’, ‘B’ and ‘C’ are in proportion in the given order while ‘A’ = 20 and ‘B’ = 40, then find the value of ‘C’.
- If ‘A’, ‘B’ and ‘C’ are in proportion in the given order while ‘A’ = 9 and ‘B’ = 45, then find the value of ‘C’.
Rs 2279 was divided among Anil, Bhanu and Charan in the ratio of 16:9:18 respectively. Find the amount received by Anil and Bhanu together.
The ratio of investment of A and B is 2 : 5 and that of B and C is 3 : 7. Find the investment of B if sum of investment of A, B and C is Rs. 33600.
The ratio between two numbers is 4:5. If each number is increased by 6, the ratio between then become 7:8, find the difference between numbers.
- If the mean proportion of 1.44 and 4 is 'k', then find the value of '5k'.
A sum is distributed among A, B and C is the ratio 8: 4: 3 and A divides its part between D and E in the ratio 9: 7, then what is the ratio of part of C...
What is the mean proportion between 4 and 36?
Two numbers are respectively 40% and 20% more than a third number. Find the ratio of two numbers.
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