Here, A is incorrect at its place. Preserving down the smartphone wonrsquo;t make sense, but powering down a smartphone makes sense. Hence, A-B can be exchanged. Also, C and D are incorrect at their places. They can also be exchanged to get a meaningful sentence. Powering down your smartphone at night wonrsquo;t help preserve the battery, since it's unlikely that you would be using the device at that time.
In an examination, the average marks obtained by the students is 75. After correcting the quantitative mistakes, the average of 100 students is reduced ...
Average weight of 17 nurses is 48 kg. If the weight of one more nurse is included, then average weight is increased by 1 kg. Find the weight of the newl...
Mishti bought 20 kg apples for Rs 60 per kg, b kg apples for Rs 70 per kg and (b + 6) kg apples for Rs 50 per kg. She mixed all type of apples together ...
In an examination, the average marks obtained by the students is 75. After correcting the quantitative mistakes, the average of 100 students is reduced...
The average of twelve numbers is 45.5. The average of the first four numbers is 41.5 and that of the next five numbers is 48. The 10th number...
The average weight of x persons is 33 kg. The average weight of (x−16) women is 45 kg, the average weight of (x−30) children ...
Find the average of all the numbers between 9 and 31, which are divisible by 5?
Average weight of 12 nurses is 32 kg. If the weight of one more nurse is included, then average weight is increased by 2 kg. Find the weight of the newl...
The average of five even numbers is 68. If we replace two of these even numbers, 84 and 92, with a single even number X, the new average decreases by 4....
The average age of a group of five friends is 78 years. If a friend, aged 48 years, is replaced by another friend, then the avera...
