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Start learning 50% faster. Sign in nowLet the rate of swimming in still water be x km/hr Rate down-stream = (x + 5) km/hr Rate up-stream = (x – 5) km/hr According to the question, (x + 5) t = 3 (x – 5) × t x + 5 = 3x – 15 x = 10 km/hr
If the ratio between two numbers is 3: 5 and their LCM is 120, then the numbers are:
Two numbers are in the ratio 3 : 4. When 8 is subtracted from each, the ratio becomes 2 : 3. Find the greater number.
If a student distributes sweets in the ratio of 1/2:1/3:1/4:1/5:1/6 among five of his friends A, B, C, D and E, then the total number (minimum) of swe...
Number of faculties in Physics and Biology in an institute is in the ratio of 2:3 respectively. If 60 more faculties join Physics, while 32 more faculti...
A sum of Rs. 2,100 is distributed among three persons P, Q, and R in the ratio 3:2:5. If the same sum had been distributed in the ratio 5:2:3, then how ...
Hariom has 85 notes of Rs 50 and Rs 100. If the total money he has is Rs 5000, then find the number of Rs 50 notes.