The average wage of a group of 23 labourers is Rs. 460. If 4 persons receiving average wage of Rs. 350 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. 40. Find the value of ‘K’.
Total wage of 23 labourers in the initial group = 23 × 460 = Rs. 10580 New average wage of the group = 460 + 40 = Rs. 500 New number of labourers in the group = 23 – 4 + 2 = 21 So, according to the question, 10580 – 4 × 350 + 2K = 500 × 21 Or, 10580 – 1400 + 2K = 10500 Or, 9180 + 2K = 10500 Or, 2K = 10500 – 9180 = 1320 Or, K = (1320/2) = 660
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15.001% of 799.99 - 3/11% of 1099.99 + 111.002 = ?
(?)2 + 4.113 = 25.92 – 32.03
(14.98% of 279.99) - 8.998 = √?
19.87% of (49.68 × ?) = 19.78% of 1099.87
? + 151.99 – 100.01 = 23.01 × 4.98
22.11 × 4.98 + 23.03 × 5.12 – 32.95 + 96.9 × 5.02 =?
1111.25 × 9.05 + 2323.23 × 9.05 – 2121.37 × 9.05 = ?
?% of (144.31 ÷ 17.97 × 60.011) = 239.98
(98.999)2 - (9.9)2 - (14.9)2 = ?