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Start learning 50% faster. Sign in nowUpstream speed = 266/7 = 38 km/h Downstream speed = 468/9 = 52 km/h Speed of boat in still water = (38 + 52)/2 = 45 km/h Speed of stream = (52 – 38)/2 = 7 km/h Increased speed of boat in still water = 45 + 4 = 49 km/h Decreased speed of stream = 7 – 2 = 5 km/h Required time taken = 528/(49 – 5) + 540/(49 + 5) = 12 + 10 = 22 hours
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P and Q together started a business with initial investment in the ratio of 1:13, respectively. The time-period of investment for P and Q is in the rati...
A, B, and C form a partnership with their investments in the ratio of 4:5:6. After 6 months, A raises his investment by 25%, B reduces his investment by...
A spent 25% of his monthly income on study and 55% of the remaining on rent. If amount spent on rent is Rs. 825, then find the amount spent on study
P and Q together started a business with initial investment in the ratio of 4:5, respectively. The time-period of investment for P and Q is in the ratio...
‘A’ and ‘B’ entered into a partnership by investing Rs. 9000 and Rs. 5200, respectively. If ‘A’ invested his sum for only 4 months and the t...
A and B started a business by investing sum in the ratio 5:8 respectively for 6 and 10 months respectively. If annual profit earned by B is Rs.2200, the...
‘C’ and ‘D’ started a business by investing Rs. 30,000 and Rs. 25,000, respectively. ‘D’ manages the business and for that he is entitled to...
X and Y initiated a partnership, with investments of Rs. 5000 and Rs. 6000 respectively. Six months into the partnership, Z joined by contributing Rs. 4...
