Question
27.99² - 40.02% of 419.99 + √3135.99 = ? X
5.99 What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)Solution
ATQ,
27.99²- 40.02% of 419.99 + √3135.99 = ? X 5.99
28²- 40% of 420 + √3136 = ? X 6
784 - 0.4 X 420 + 56 = ? X 6
784 - 168 + 56 = ? X 6
? = (672/6)
? = 112
The price of a commodity has risen by 40%, leading to a 25% decrease in the quantity sold. What is the overall impact on total revenue?
- The population of a city was 25,000 in 2018. It increased by 10% in 2019, decreased by 15% in 2020, and increased again by 20% in 2021. What was the popula...
Rahul saves Rs. 6800 more if he spends 70% of his income instead of 90%. Find the savings of Sumit whose income is 25% more than that of Rahul, and spen...
The respective ratio of monthly income of A to monthly income of B is 7:8, and A’s saving is (100/8)% more than B’s saving. Find the expenditure of ...
- In a large nursery, 65% of the plants are rose plants. The number of sunflower plants is 20% of the rose plants, and the number of tulip plants is 60% of t...
Anita spends 75% of her monthly salary and receives a commission of 5% on her salary every month. If her annual saving is Rs. 129600, find the commissio...
A person saves 30% of his monthly income. If his monthly is increased by 45% and he still saves the same amount as before then find percentage increase ...
- In an internal assessment, the minimum passing percentage is 45%. Marks scored by ‘M’ are 15% less than passing marks, and ‘N’ scores 18% marks les...
Sachin allocates 40% of his monthly income to his studies. From what remains, he spends 35% on food. After these expenses,he saves Rs. 1560 each month. ...
In a two-candidate city council election, 40% of the votes were found invalid. From the valid votes, 60% went to the winner, who led by 1,200 votes. Fin...
Relevant for Exams:
