Question
By interchanging which two signs the question will be
correct? 15 + 5 ÷ 2 – 9 × 3 = 22Solution
The correct answer is B
Komal bought 20 kg rice for Rs 30 per kg, b kg rice for Rs 35 per kg and (b + 4) kg rice for Rs 25 per kg. She mixed all type of rice together and the a...
The average age of a group of 10 students is 30 years. Two persons of age 40 years and 35 years, left the group and 2 persons of age 50 years and 95 yea...
- The average weight of 10 individuals in an organization is 50 kg. When two new members, Akash and Binny, join the organization, their weights being in the ...
A number is such that when it is multiplied by 6, it gives another number which is as much above from 210 as the original number (itself) is below 210. ...
In a school, the average number of books that some numbers of boys have is 80 and average number of books that some numbers of girls have is 50. If each...
Average weight of 13 nurses is 45 kg. If the weight of one more nurse is included, then average weight is increased by 1 kg. Find the weight of the newl...
- The mean of 60 numbers is 105. Calculate the new mean if all numbers are multiplied by 4.
The average profit of a shop for the first 3 months is Rs.500 per month. If the shop owner wants the average profit to be Rs.800 per month over 6 months...
The average marks scored by 20 boys and 45 girls are 88 and 94 respectively. Find the average marks scored by all the students together. (Answer should ...
The average marks of 35 Spanish students in a mathematics exam is 75. If the marks of their teacher are included, the average increases by 1. Find the...
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