हिंदी

If 90% of x is 315 km, then the value of x is ______.

Advertisements
Advertisements

प्रश्न

If 90% of x is 315 km, then the value of x is ______.

विकल्प

  • 325 km

  • 350 km

  • 405 km

  • 340 km

MCQ
रिक्त स्थान भरें
Advertisements

उत्तर

If 90% of x is 315 km, then the value of x is 350 km.

Explanation:

Given,

90% of x = 315 km

⇒ `90/100 xx x = 315`

⇒ 90x = 315 × 100

⇒ `x = (315 xx 100)/90`

⇒ x = 350 km

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 7: Comparing Quantities - Exercise [पृष्ठ १९८]

APPEARS IN

एनसीईआरटी एक्झांप्लर Mathematics [English] Class 7
अध्याय 7 Comparing Quantities
Exercise | Q 18. | पृष्ठ १९८

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

A publisher gives 32% discount on the printed price of a book to booksellers. What does a bookseller pay for a book whose printed price is Rs 275?


A cycle merchant allows 20% discount on the marked price of the cycles and still makes a profit of 20%. If he gains Rs 360 over the sale of one cycle, find the marked price of the cycle.


A man buys an article for ₹ 150 and makes overhead expenses which are 12% of the cost price. At what price must he sell it to gain 5%?


Ashima sold two coolers for Rs 3,990 each. On selling one cooler she gained 5% and on selling the other she suffered a loss of 5%. Find her overall gain or loss % in whole transaction.


At a toy shop price of all the toys is reduced to 66% of the original price. How much money would you save on a toy costing Rs 90?


A store is having a 25% discount sale. Sheela has a Rs 50 gift voucher and wants to use it to buy a board game marked for Rs 320. She is not sure how to calculate the concession she will get. The sales clerk has suggested two ways to calculate the amount payable.

- Method 1: Subtract Rs 50 from the price and take 25% off the resulting price.

- Method 2: Take 25% off the original price and then subtract Rs 50.

  1. Do you think both the methods will give the same result? If not, predict which method will be beneficial for her.
  2. For each method, calculate the amount Sheela would have to pay. Show your work.
  3. Which method do you think stores actually use? Why?

A store is having a 25% discount sale. Sheela has a Rs 50 gift voucher and wants to use it to buy a board game marked for Rs 320. She is not sure how to calculate the concession she will get. The sales clerk has suggested two ways to calculate the amount payable.
- Method 1: Subtract Rs 50 from the price and take 25% off the resulting price.
Which method do you think stores actually use? Why?


With the decrease in prices of tea by 15% Tonu, the chaiwallah, was able to buy 2 kg more of tea with the same Rs 45 that he spent each month on buying tea leaves for his chai shop. What was the reduced price of tea? What was the original price of tea?


In an entertainment programme, 250 tickets of ₹ 400 and 500 tickets of ₹ 100 were sold. If the entertainment tax is 40% on ticket of ₹ 400 and 20% on ticket of  ₹ 100, find how much entertainment tax was collected from the programme.


The marked price of an article is ₹ 2,000. The GST on the article is 12% and discount is ₹ 500, the total amount to be paid is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×