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ATQ, Downstream speed = D (1 km)/(5/60)hr = 60/5 = 12 km/hr Upstream Speed = U = 6km/1hr = 6km/h Speed of thr stream , (D - U/2) = (12 - 6)/2 = = 6/2 = 3 km/hr
The average number of sweets distributed in a class of 90 students is 6. If lsquo;xrsquo; number of students newly joined the class and the average beco...
Average 20 numbers is ‘x’. If the average of first 12 numbers is 62.5 while average of last 5 numbers is 74.8 and 13th, 14th a...
Average of 20 numbers is 90. Average of first 8 numbers is 114 while average of last nine numbers is 40. If ninth number is 25% less than the tenth numb...
The average height of Nakul, Baneet, Preetam and Yash is 20 cm, while the average height of Nakul, Preetam and Yash is 16 cm. If height of Manish is 25%...
A chef prepared 6 different dishes, and the average rating for those dishes was 18 out of 100. For the next 4 dishes, the chef improved significantly, a...
The average cost price of 21 pens (having equal cost price) decreased by Rs.3, when one of the pen is replaced by a new pen having cost price of Rs.55. ...
The average salary of 400 employees were found to be Rs. 250. Later on, it was discovered that the wages of two workers were misread as 260 and 140 inst...
The average of four consecutive odd numbers is 47. What is the largest of these numbers?
The average height of each person in group 'C' having 25 people is 10 cm less than the average height of each person in group 'D' having 20 people. If t...
In an examination the average marks of Rohit is 60. If he got 21 more marks in science and 35 more marks in maths then his average would have been 68. F...
