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The average age of three girls 15 years. If their ages are in ratio 3 : 5 : 7, the age of the youngest girl ?
Wrong Answer
Correct Ans = 9
Wrong Answer
Correct Ans = 9
Wrong Answer
Correct Ans = 9
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9
What is the average of first 93 natural numbers.
Wrong Answer
Correct Ans = 47
Wrong Answer
Correct Ans = 47
Congratulation : You Choose Right Answer
47
Wrong Answer
Correct Ans = 47
The speed of the train going from Rajshahi to Dhaka is 150 km/h while when coming back from Dhaka to Rajshahi, its speed is 100 km/h. find the average speed during fulljourney.
Wrong Answer
Correct Ans = 120 km/hr
Wrong Answer
Correct Ans = 120 km/hr
Wrong Answer
Correct Ans = 120 km/hr
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120 km/hr
The average temperature for Monday, Thursday and Friday was 40°C. The average for Thursday, Friday and Saturday was 41° C. If temperature on Saturday was 42° C, what was the temperature on Monday??
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39
Average temperature for Monday, Thursday and Friday = 40° C
Total temperature = 3 × 40 = 120° C
Average temperature for Thursday, Friday and Saturday = 41° C
Total temperature = 41 × 3 = 123° C
Temperature on Saturday = 42° C
Now,
(T + F + S) - (M+ T + F) = 123 - 120;
S- M= 3
M = 42 - 3 = 39° C
Wrong Answer
Correct Ans = 39
Wrong Answer
Correct Ans = 39
Wrong Answer
Correct Ans = 39
Sakib has a certain average for 9 innings. In the tenth innings, he scores 100 runs thereby increasing his average by 8 runs. what is his new average?
Wrong Answer
Correct Ans = 28
Wrong Answer
Correct Ans = 28
Congratulation : You Choose Right Answer
28
Let Sakib's average be x for 9 innings. So, Ajit scored 9x run in 9 innings.
In the 10th inning, he scored 100 runs than average became (x+8). And he scored (x + 8) × 10 runs in 10 innings.
Now,
Wrong Answer
Correct Ans = 28
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