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mehakNewbie

Asked: June 28, 2023In: CBSE

3. A cottage industry produces a certain number of toys in a day. The cost of production of each toy (in rupees) was found to be 55 minus the number of articles produced in a day. On a particular day, the total cost of production was Rs. 750. If x denotes the number of toys produced that day, form the quadratic equation to find x.

Explain, how did we split the number in the equation. How to prove? Class 10th, Statistics, Rd sharma, Mathematics.

mehakNewbie

Asked: July 31, 2023In: CBSE

15. An iron spherical ball has been melted and recast into smaller balls of equal size. If the radius of each of the smaller balls is 1/4 of the radius of the original ball, how many such balls are made? Compare the surface area of all the smaller balls combined together with that of the original ball.

Explain the question using formulas given in the chapter. Class 10th Cbse, RD Sharma.

deepaksoniGuru

Asked: March 10, 2021In: ICSE

A man invests rs.6750 , partly in shares of 6% at rs.140 and partly in shares of 5% at 125 rs. if his total income is rs 280 , how much has he invested in each?

an important question from the book -ML aggarwal( avichal publication)class 10th , chapter3, shares and dividends ……..this question once asked ...Read more

deepaksoniGuru

Asked: March 11, 2021In: ICSE

The shadow of a vertical tower on a level ground increases by 10 m when the altitude of the sun changes from 450 to 300. Find the height of the tower, correct to two decimal places.

sir this is the question from the book -ML aggarwal( avichal publication) class 10th , chapter20 , heights and distancesRead more

deepaksoniGuru

Asked: March 15, 2021In: ICSE

(i) (sec A + tan A) (1 – sin A) = cos A (ii) (1 + tan2 A) (1 – sin A) (1 + sin A) = 1

This is an important question taken from the Book- ML Aggarwal Board- ICSE Publication- Avichal Chapter- Trigonometric Identities Chapter number-1 We ...Read more

deepaksoniGuru

Asked: March 16, 2021In: ICSE

Shahrukh opened a Recurring Deposit Account in a bank and deposited Rs 800 per month for 112 years. If he received Rs 15084 at the time of maturity, find the rate of interest per annum

This is an important question from the Book- ML Aggarwal Board- ICSE Publication- Avichal Chapter- Banking Chapter number-2 This question ...Read more

deepaksoniGuru

Asked: March 16, 2021In: ICSE

An aeroplane travelled a distance of 400 km at an average speed of x km/hr. On the return journey, the speed was increased by 40 km/hr. Write down an expression for the time taken for (i)the onward journey, (ii) the return journey. If the return journey took 30 minutes less than the onward journey, write down an equation in x and find its value

This question has been taken from Book:- ML aggarwal, Avichal publication, class10th, quadratic equation in one variable, chapter 5, exercise ...Read more

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A man invests rs.6750 , partly in shares of 6% at rs.140 and partly in shares of 5% at 125 rs. if his total income is rs 280 , how much has he invested in each?

The shadow of a vertical tower on a level ground increases by 10 m when the altitude of the sun changes from 450 to 300. Find the height of the tower, correct to two decimal places.

(i) (sec A + tan A) (1 – sin A) = cos A (ii) (1 + tan2 A) (1 – sin A) (1 + sin A) = 1

Shahrukh opened a Recurring Deposit Account in a bank and deposited Rs 800 per month for 112 years. If he received Rs 15084 at the time of maturity, find the rate of interest per annum