Question
The average wage of a group of 49 labourers is Rs. 650.
If 4 persons receiving average wage of Rs. 500 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. 46. Find the value of ‘K’.Solution
Total wage of 49 labourers in the initial group = 49 × 650 = Rs. 31850 New average wage of the group = 650 + 46 = Rs. 696 New number of labourers in the group = 49 – 4 + 2 = 47 So, according to the question, 31850 – 4 × 500 + 2K = 696 × 47 Or, 31850 – 2000 + 2K = 32712 Or, 29850 + 2K = 32712 Or, 2K = 32712 – 29850 = 2862 Or, K = (2862/2) = 1431
What will come in the place of question mark (?) in the given expression?Â
? X (62 - 20) + 60 X 5 = √1296 X 25 - 35 X 43...
(12% of 1250 + 85% of 400) x 10 = ?2
√ [? x 11 + (√ 1296)] = 16
√441 * 7 – 10% of 250 + ? = 140% of 120
(7/5) × (3/4) × (5/9) × (6/7) × 3112 = ?
What value should come in place of the question mark (?) in the following question?
45 × 2 + 180 ÷ 6 − 12 = ? Â
168Â Â Â Â Â 163Â Â Â Â Â Â 153Â Â Â Â Â Â 138Â Â Â Â Â 118Â Â Â Â Â ?
...√ (12+√ (12+√ (12+ ⋯ ∞ ))Â
What is the value of 7/9-11/12+12/16-1/8?
If the weight of 1 liter of water is 1 kilogram, then the volume of 0.1 gram of water is how many cubic millimeters.
