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Start learning 50% faster. Sign in nowDistance upstream= 10 km, time taken to row upstream = 5 hrs. Speed upstream = 10/ 5 = 2 km/hr. Distance downstream= 15 km, Time taken to row downstream = 5 hrs. Speed downstream = 15 /5 = 3 km/hr. Speed of the current =(3 – 2) x ½ = 0.5 km / hr
If p:q = 5:7 and p + q = 408, then find the value of (q - p).
At a certain time in a park, the number of heads and the number of legs of monkeys and human visitors were counted, and it was found that there were 54 ...
If the standard deviation of a population is 5.5, what would be the population variance?
The mean of a data set is 50 and the standard deviation is 10. What is the coefficient of variation?
If 8 times the eighth term of an Arithmetic Progression (AP) is equal to 12 times its twelfth term, then the 20th term of the AP will be
The sum of three numbers is 226. If the ratio of the first to the second is 4:5 and that of second to the third is 7: 10 then the second number is?
A total of Rs. 558 was distributed among P, Q, R, S, T, and U. The amounts they received were in descending order and formed an arithmetic progression. ...
What will be the 11th term of the arithmetic progression 3, 8, 13, _____?
Find the mode of the following data:
[16 × 15 + 224 × 5] ÷ 5 = ? × 4
