The product of two number x and y is twice the sum of the numbers . What is the sum of the reciprocals of x and y?

Created: 3 months ago | Updated: 1 month ago

\frac{2}{3}

\frac{3}{4}

\frac{3}{7}

\frac{1}{2}

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A train is travelling at 100 km per hour (Kmh) overtakes a motorbike travelling at a speed of 65 kmh in 40 seconds . What is the length of the train in meters?

Created: 3 months ago | Updated: 1 month ago

400

৪৫০

500

Try your self

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What fraction of an hour elapses between 11 : 40 p. m. and 12. 20 a.m.?

Created: 3 months ago | Updated: 1 month ago

\frac{2}{3}

\frac{1}{2}

\frac{4}{5}

\frac{1}{6}

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If y = 5, then what is the value of 10y $\sqrt{y^{3} - y^{2}} ?$

Created: 3 months ago | Updated: 1 month ago

50 \sqrt{2}

100

200 \sqrt{5}

500

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If a and b are positive real numbers , then ( $(a ° - 3 b °)^{5} = ?$

Created: 3 months ago | Updated: 1 month ago

1 km/hr

-32

-1

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The present ages of three persons are in proportions 4:7:9. Eight years ago, the sum of their ages was 56. Find their present ages(in years).

Created: 3 months ago | Updated: 1 month ago

8,20,28

16,28,36

20,35,45

None of these

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The product of two number x and y is twice the sum of the numbers . What is the sum of the reciprocals of x and y?

Related Questions

A train is travelling at 100 km per hour (Kmh) overtakes a motorbike travelling at a speed of 65 kmh in 40 seconds . What is the length of the train in meters?

What fraction of an hour elapses between 11 : 40 p. m. and 12. 20 a.m.?

If y = 5, then what is the value of 10y y3-y2 ?

If a and b are positive real numbers , then ( (a°-3b°)5=?

The present ages of three persons are in proportions 4:7:9. Eight years ago, the sum of their ages was 56. Find their present ages(in years).

If y = 5, then what is the value of 10y $\sqrt{y^{3} - y^{2}} ?$

If a and b are positive real numbers , then ( $(a ° - 3 b °)^{5} = ?$