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Start learning 50% faster. Sign in nowAccording to the question, Let length of train be ‘x’ m. => (Speed of train – Speed of man) = Length of train/Time => (76 - 4)× (5/18) = x/32 => 20 = x/32 => x = 640 Length of train is 640 meter.
The ages of A, B and C are in the ratio of 5:4:8 respectively. If the sum of their ages is 51 years, then find the age of B.
Ratio of males to females in village ‘A’ and village ‘B’ is 2:5 and 9:10, respectively and number of females in village ‘B’ is 25% more than...
The ratio of the incomes of Vineet and Vidya is 10:7 respectively. Vineet saves 30% of his income while Vidya saves 20% of his income. The sum of their ...
The ratio of the two numbers is 4:7. 110% of the first number is equal to the 80% of the second number. Find the sum of both the numbers.
300 is divided into two parts such that thrice of the first part and twice of the second part are in ratio 21:16, respectively. Find the difference betw...
Find 'X' if the below three numbers are in proportion.
2.6, 1.3, X
What is the fourth proportion of 13, 20 and 26?
An alloy contains copper and zinc in the ratio 5 : 3 and another contains copper and tin in the ratio 8 : 5. If equal weights of the two are melted toge...
A student bought 10 pencils and 8 pens at Rs 150. He sells pencil at 4%profit and pen at 7%profit. Overall, he gains Rs 9 Find the cost price of each pe...
The ratio of the two numbers is 3:8. 140% of the first number is equal to the 60% of the second number. Find the sum of both the numbers.
