Questions by nikhil

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Find the M.P. if (a) S.P. = Rs 495 and discount = 1% (b) S.P. = Rs 9,250 and discount = `7

asked Jan 17, 2022 in 8th-maths

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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 17, 2022 in 8th-maths

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Lemons were bought at Rs 48 per dozen and sold at the rate of Rs 40 per 10. Find the gain or loss per

asked Jan 17, 2022 in 8th-maths

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Sunscreens block harmful ultraviolet (UV) rays produced by the sun. Each sunscreen has a Sun Protection Factor (SPF) that tells you how many minutes you can stay in the sun before you receive one minute of burning UV rays. For example, if you apply sunscreen with SPF 15, you get 1 minute of UV rays for every 15 minutes you stay in the sun. 1. A sunscreen with SPF 15 allows only `1/15` of the sun’s UV rays. What per cent of UV rays does the sunscreen abort? 2. Suppose a sunscreen allows 25% of the sun’s UV rays. a.

asked Jan 17, 2022 in 8th-maths

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Madhu’s room measures 6m × 3m. Her carpet covers 8m2. What per cent of floor is covered by the

asked Jan 17, 2022 in 8th-maths

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The human body is made up mostly of water. In fact, about 67% of a person’s total body weight is water. If Jyoti weights 56 kg, how much of her weight is

asked Jan 17, 2022 in 8th-maths

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When two quantities x and y are in inverse proportion, then `x/y` is a

asked Jan 17, 2022 in 8th-maths

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If 5 persons can finish a job in 10 days then one person will finish it in 2

asked Jan 17, 2022 in 8th-maths

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In a scout camp, there is food provision for 300 cadets for 42 days. If 50 more persons join the camp, for how many days will the provision

asked Jan 17, 2022 in 8th-maths

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Which of the following vary inversely with each

asked Jan 17, 2022 in 8th-maths

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If x = 5y, then x and y vary ______ with each

asked Jan 17, 2022 in 8th-maths

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x and y are said to vary directly with each other if for some positive number k, ______

asked Jan 17, 2022 in 8th-maths

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Two quantities x and y are said to vary directly with each other if for some rational number k, xy =

asked Jan 17, 2022 in 8th-maths

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If one angle of a triangle is kept fixed then the measure of the remaining two angles vary inversely with each other. 54. When two quantities are related in such a manner that, if one increases, the other also increases, then they always vary

asked Jan 17, 2022 in 8th-maths

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When two quantities are related in such a manner that if one increases and the other decreases, then they always vary

asked Jan 17, 2022 in 8th-maths

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The area of cultivated land and the crop harvested is a case of direct

asked Jan 17, 2022 in 8th-maths

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Find the values of x and y if a and b are in inverse proportion: a. 12 x 8 b. 30 5

asked Jan 17, 2022 in 8th-maths

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In a hostel of 50 girls, there are food provisions for 40 days. If 30 more girls join the hostel, how long will these provisions

asked Jan 17, 2022 in 8th-maths

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44 cows can graze a field in 9 days. How many less/more cows will graze the same field in 12

asked Jan 17, 2022 in 8th-maths

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Ms. Anita has to drive from Jhareda to Ganwari. She measures a distance of 3.5 cm between these villages on the map. What is the actual distance between the villages if the map scale is 1 cm = 10

asked Jan 17, 2022 in 8th-maths

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