Question
If the ratio of A to B is 6:11, and the expression (8B -
3A) equals to 210, find the value of (3A + 2B).Solution
Let 'A' = '6x' So, B = 6x X (11/6) = '11x' According to question; 8 X 11x - 3 X 6x = 210 Or, 88x - 18x = 210 Or, 70x = 210 So, x = 3 So, A = 6x = 3 X 6 = 18 And, B = 11x = 11 X 3 = 33 So, required value = 18 X 3 + 33 X 2 = 54 + 66 = 120
2660.03 ÷ 94.98 x 59.9 = ? + 20.32
What approximate value will come in place of question (?) in the following given expression? You are not expected to calculate the exact value.
...
Find the approximate value of Question mark(?). No need to find the exact value.
(519.79 ÷ 10.03) × (47.98 ÷ 6) + √(63.94) × 4.04 = ?
...447.79 ÷ √(√2400) + 30.94 × 6.07 – 5.08 × 21.96 = ?
1131.98 + ? – 1125.04 = 1364.93 – 1168.01
11.11% of 1800.89 + 34.89 X 10.99 - 500.50 = ?
(3/7 of 1049.88 + 44.95% of 799.79) ÷ (√168.89 + 24.77% of 400.11) = ?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
If a:(b+c) =3:9 and c:(a+b) =10:14 then find the value of b:(a+c)?
Relevant for Exams:
