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ATQ, Let the efficiency of 'Neeraj' be '10n' units/day So, efficiency of 'Mahesh' = 10n × 0.6 = '6n' units/day So, ratio of efficiency of time taken by 'Mahesh' and 'Neeraj' = 10n:6n = 5:3 Let time taken by 'Mahesh' and 'Neeraj' to finish some work be '5m' day and '3m' days. So, 5m - 3m = 30 So, 2m = 30 So, m = 15 And time taken by Neeraj to finish the work = 3 × 15 = 45 days So, required time = 45 ÷ 0.8 = 56.25 days
If '+' means '-', '-' means '+', '×' means '÷', and '÷' means '×', then the value of 42 – 12 × 3 + 8 ÷ 2 + ...
69,012 ___ 20,167 ___ 51,246 ___ 6 ___ 50,000 = 7,386
A trader purchased 132 dozens of mangoes at Rs.475 per dozen and could sell only 125 dozens at Rs.530 per dozen. What is the value of stock of mangoes i...
`2/5` ___ 15 ___ 115___ 20 ___ 4 = 581
Due to 25% fall in the rate of eggs, one can buy 2 dozen eggs more than before by investing Rs.162. Then the original rate per dozen of the eggs is
160 cycles were sold for Rs.524,000 resulting in a loss of 10%. What was the cost price of a cycle (in Rs.)? (rounded off to the nearest rupee)
If a dozen apples weigh 1.8 kg in total, how many apples will be there in 3 boxes weighing 23.250 kg each?
Solve : (3.2 × 104) ÷ (2 × 105)
Two men and 7 women can complete a work in 28 days whereas 6 men and 16 women can do the same work in 11 days. In how many days can 7 men complete the s...
In an election two candidates participates. 20% voters did not vote. 25 % votes declared invalid and the winner get 80 % of the valid votes. If he win b...
