Questions by nikhil

0 votes

0 answers

The left column of the chart lists the lengths of input chains of gold. Repeater machines are listed across the top. The other entries are the outputs you get when you send the input chain from that row through the repeater machine from that column. Copy and complete the chart.

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

Long back in ancient times, a farmer saved the life of a king’s daughter. The king decided to reward the farmer with whatever he wished. The farmer, who was a chess champion, made an unusal request: “I would like you to place 1 rupee on the first square of my chessboard, 2 rupees on the second square, 4 on the third square, 8 on the fourth square, and so on, until you have covered all 64 squares. Each square should have twice as many rupees as the previous square.” The king thought this to be too less and asked the

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

The diameter of the Sun is `1.4 xx 10^9` m and the diameter of the Earth is `1.2756 xx 10^7` m. Compare their diameters by

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

Mass of Mars is `6.42 xx 10^29` kg and mass of the Sun is `1.99 xx 10^30` kg. What is the total

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

A particular star is at a distance of about `8.1 xx 10^13` km from the Earth. Assuring that light travels at `3 xx 10^8` m per second, find how long does light takes from that star to reach the

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

By what number should `(–15)^(–1)` be divided so that the quotient may be equal to

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

A shirt with marked price Rs 800 was sold at Rs 680. The rate of discount allowed on the shirt

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

Suppose a certain sum doubles in 2 years at r % rate of simple interest per annum or at R% rate of interest per annum compounded annually. We

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

The marked price of an article is Rs 80 and it is sold at Rs 76, then the discount rate

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

A TV set was bought for Rs 26,250 including 5% VAT. The original price of the TV set

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

Discount = Discount % of

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

The time period after which the interest is added each time to form a new principal is called the

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

The cost of a tape-recorder is Rs 10,800 inclusive of sales tax charged at 8%. The price of the tape-recorder before sales tax was charged is

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

To calculate the growth of a bacteria if the rate of growth is known, the formula for calculation of amount in compound interest can be

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

A man purchased a bicycle for Rs 1,040 and sold it for Rs 800. His gain per cent is

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

Simple interest on a given amount is always less than or equal to the compound interest on the same amount for the same time period and at the same rate of interest per

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

Harshna gave her car for service at service station on 27-05-2009 and was charged as follows: (a) 3.10 litres engine oil @ Rs 178.75 per litre and VAT @ 20%. (b) Rs 1,105.12 for all other services and VAT @ 12.5%. (c) Rs 2,095.80 as labour charges and service tax @10%. (d) 3% cess on service Tax. Find the bill

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

If principal = Rs 1,00,000. rate of interest = 10% compounded half yearly. Find Interest for 6

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

Music CD originally priced at Rs 120 is on sale for 25% off. What is the S.P.? Sonia and Rahul have different ways of calculating the sale price for the items they bought. As you work on the next problem, try both of these methods to see which you

asked Jan 18, 2022 in 8th-maths

0 votes

0 answers

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?

asked Jan 18, 2022 in 8th-maths

Questions by nikhil

Categories