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Evaluate: (- (3)/(5)) xx (-10)...

Evaluate: `(- (3)/(5)) xx (-10)`

A

`-6`

B

`6`

C

8

D

`-8`

Text Solution

AI Generated Solution

The correct Answer is:
To evaluate the expression \((- \frac{3}{5}) \times (-10)\), we can follow these steps: ### Step 1: Rewrite the expression We have: \[ (- \frac{3}{5}) \times (-10) \] ### Step 2: Convert -10 to a fraction We can express \(-10\) as a fraction: \[ -10 = \frac{-10}{1} \] ### Step 3: Multiply the fractions Now we can multiply the two fractions: \[ (- \frac{3}{5}) \times \frac{-10}{1} = \frac{-3 \times -10}{5 \times 1} \] ### Step 4: Calculate the numerator and denominator Calculating the numerator: \[ -3 \times -10 = 30 \] Calculating the denominator: \[ 5 \times 1 = 5 \] So we have: \[ \frac{30}{5} \] ### Step 5: Simplify the fraction Now we simplify \(\frac{30}{5}\): \[ \frac{30}{5} = 6 \] ### Final Answer Thus, the final answer is: \[ 6 \] ---
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MTG IIT JEE FOUNDATION-RATIONAL NUMBERS -EXERCISE (MULTIPLE CHOICE QUESTIONS) (LEVEL-1)
  1. Which rational number has to be multiplied with 64 to get the product ...

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  2. Find the value of the expression (3)/(5) xx (3)/(14) xx (15)/(2) xx ...

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  3. Evaluate: (- (3)/(5)) xx (-10)

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  4. What is the multiplication of 2 (1)/(5) and 5 (1)/(2) ?

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  5. What is the multiplication of - (6)/(9) and (9)/(6) ?

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  6. What is the product of - (1)/(5) and 5 (3)/(7) ?

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  7. Which number line correctly shows the rational number - (2)/(9) + (1)/...

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  8. Sum of two rational numbers is -8 if one number is (3)/(4), then find ...

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  9. Write the rational number whose numerator is 4 xx (-7) and denominato...

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  10. From his home, Rahul walks (6)/(7) km towards school and then returns ...

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  11. Find the value of the expression (7)/((-18)) + (5)/((-12)) + ((-9))...

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  12. The product of two rational numbers is (128)/(45). If one of the numbe...

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  13. Insert three rational numbers between (1)/(3) and (4)/(5).

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  14. What should be subtracted from (-7)/(8) to get (5)/(12) ?

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  15. What should be added to ((3)/(4) + (2)/(5)) to get (-8)/(15) ?

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  16. A car is moving at an average speed of 3 (1)/(9) km/h. How much dist...

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  17. The product of two numbers is (16)/(3). If one of the numbers is (26)/...

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  18. The product of two rational number is (- 750)/(183). If one of the num...

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  19. Which of the following pairs represent equivalent rational numbers ?

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  20. Thre efriends Neena, Asha and Mahak divided a packet of rice 87 (1)/(2...

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