Question
The average wage of a group of 20 labourers is Rs. 500.
If 4 persons receiving average wage of Rs. 360 leave the group and 2 persons receiving average wage of Rs. K join the group, then the average wage of the group increases by Rs. 55. Find the value of ‘K’.Solution
Total wage of 20 labourers in the initial group = 20 × 500 = Rs. 10000 New average wage of the group = 500 + 55 = Rs. 555 New number of labourers in the group = 20 – 4 + 2 = 18 So, according to the question, 10000 – 4 × 360 + 2K = 555 × 18 Or, 10000 – 1440 + 2K = 9990 Or, 8560 + 2K = 9990 Or, 2K = 9990 – 8560 = 1430 Or, K = (1430/2) = 715
(3375)1/3 x 12.11 x 6.97divide; 14.32 = ? + 15.022
20.22% of (74.9 × 6.01) + 69.97 =?
24.66% of 8640.31 + (56.06 × 14.11) ÷ 8 = ?
20.012% of ? – 25.06% of 199.91 = 11.97% of 224.89
(2520.33 ÷ 41.67) × (√168.88 + √80.78) - 10% of 1499.85 = ?
`[(sqrt(750) xx15.981) -: 54.003]` `xx` ? = 6997.81001
(?)2 + 4.113 = 24.92 – 32.03
15.63% of 174.99 + √? = 139.98% of 24.98
4999.99 ÷ 10.25 + 379.99 - 160.25 = ?
A salesman is allowed 32% commission on the total sales by him and a bonus of 3% on the sales over Rs. 15000. If the total earnings of a salesman is Rs....
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