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Start learning 50% faster. Sign in nowATQ, Let number of teachers in Department B = ‘x’ Number of teachers in Department A = 1.80 × x = 1.8x So, 1.8x + x = 112 Or, 2.8x = 112 Or, x = 40 Number of teachers in Department B = 40 Number of teachers in Department A = 1.8 × 40 = 72 Let average weight of teachers of Department B = ‘y’ kg Average weight of teachers of Department A = 1.40 × y = 1.4y kg According to question; (40 × y + 1.4y × 72)/112 = 88 Or, 40y + 100.8y = 88 × 112 Or, 140.8y = 88 × 112 So, y = 70 Average weight of teachers in Department A = 1.4y = 1.4 x 70 = 98 kg
150% of 850 ÷ 25 – 25 = ?% of (39312 ÷ 1512)
{640 of 8 - (12)2 of 6} - 900 = ?
The value of ((0.27)2-(0.13)2) / (0.27 + 0.13) is:
If √3n 729, then the value of n is equal to:
140% of 75 + 152 - 160 = ?
Find the unknown value of' x' in the proportion $$(5x + 1) : 3 = (x + 3) : 7
What should come in place of the question mark (?) in the following question?
2 – [6 – {3 + (–4 + 5 + 1) × 8} + 12] = ?
What will come in the place of question mark (?) in the given expression?
133 ÷ 19 X √576 + ? ÷ 2 = 32 X 7.5
(25 × 12 + 30 × 8 – 22 × 10) = ?