Question
Find the wrong number in the given number series.
5, 10, 20, 40, 85, 160Solution
Check the pattern:
5 × 2 = 10
10 × 2 = 20
20 × 2 = 40
40 × 2 = 80 (but given 85 ❌)
80 × 2 = 160
Wrong Number = 85
Correct Number = 80
A man travels 450 km to his home partly by train and partly by car. He takes 8 hrs 40 minutes if he travels 240 km by train and rest by car. He takes 20...
If a person walks 20% more than of his usual speed, reaches his distance 90 minutes before. If the destination is 459 km away, then the usual speed of a...
A car travels at 60 km/h to reach its destination on time. If it travels at 65 km/h, it will reach the destination 30 minutes ear...
A is cycling at an average speed of 24 km/hr such that he can reach a certain point at 12 noon. If he cycles at 36 km/hr, then he will reach the destina...
Vicky and Vikram start running simultaneously around a rectangular track of length 750m from the same point at speeds of 40 km/hr and 35 km/hr. When wil...
Car M takes 5 hours to travel from point A to B. It would have taken 6 hours, if the same car had travelled the same distance at a speed which was 15 km...
Priya needs to travel from town 'X' to town 'Y'. If she drives at a steady speed of 60 km/h, she arrives 36 minutes early. However, if she drives at 40 ...
A journey over a certain distance takes 4 hours longer when traveling at a speed of 12 km/h compared to traveling at a speed of 16 km/h. Determine the t...
Aman and Raj are running on a circular track that measures 1800 meters in circumference. Aman runs at a speed of 5 m/s, while Raj runs at 4 m/s. What i...
In an examination, the average marks obtained by the students is 75. After correcting the quantitative mistakes, the average of 100 students is reduced ...
Relevant for Exams:
