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Secondary School (English Medium) (5 to 8) इयत्ता ७ - CBSE Question Bank Solutions for Mathematics

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Mathematics
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Raju’s father’s age is 5 years more than three times Raju’s age. Find Raju’s age, if his father is 44 years old.

[4] Simple Equations
Chapter: [4] Simple Equations
Concept: undefined >> undefined

Find a number, such that one-fourth of the number is 3 more than 7.

[4] Simple Equations
Chapter: [4] Simple Equations
Concept: undefined >> undefined

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Subtract: `2 1/5 - (- 1)/3`

[8] Rational Numbers
Chapter: [8] Rational Numbers
Concept: undefined >> undefined

The value of 3 × 10–7 is equal to ______.

[11] Exponents and Powers
Chapter: [11] Exponents and Powers
Concept: undefined >> undefined

Find `4/5` of 35.

[2] Fractions and Decimals
Chapter: [2] Fractions and Decimals
Concept: undefined >> undefined

Find `3/4` of 36.

[2] Fractions and Decimals
Chapter: [2] Fractions and Decimals
Concept: undefined >> undefined

Find `2/3` of 27.

[2] Fractions and Decimals
Chapter: [2] Fractions and Decimals
Concept: undefined >> undefined

Find `1/2` of 46.

[2] Fractions and Decimals
Chapter: [2] Fractions and Decimals
Concept: undefined >> undefined

Use the bar graph (see the given figure) to answer the following question.

How many students have dog as a pet?

[3] Data Handling
Chapter: [3] Data Handling
Concept: undefined >> undefined

Which of the following is not the additive inverse of a?

[1] Integers
Chapter: [1] Integers
Concept: undefined >> undefined

Which of the following shows the maximum rise in temperature?

[1] Integers
Chapter: [1] Integers
Concept: undefined >> undefined

Write a pair of integers whose product is –12 and there lies seven integers between them (excluding the given integers).

[1] Integers
Chapter: [1] Integers
Concept: undefined >> undefined

Ramu evaluated the expression –7 – (–3) and came up with the answer –10. What did Ramu do wrong?

[1] Integers
Chapter: [1] Integers
Concept: undefined >> undefined

Reeta evaluated –4 + d for d = –6 and gave an answer of 2. What might Reeta have done wrong?

[1] Integers
Chapter: [1] Integers
Concept: undefined >> undefined

`2/5 xx 5 1/5` is equal to ______.

[2] Fractions and Decimals
Chapter: [2] Fractions and Decimals
Concept: undefined >> undefined

The picture  interprets ______.

[2] Fractions and Decimals
Chapter: [2] Fractions and Decimals
Concept: undefined >> undefined

`4 xx 6 1/3` is equal to ______.

[2] Fractions and Decimals
Chapter: [2] Fractions and Decimals
Concept: undefined >> undefined

Which letter comes `2/5` of the way among A and J?

[2] Fractions and Decimals
Chapter: [2] Fractions and Decimals
Concept: undefined >> undefined

The label on a bottle of pet vitamins lists dosage guidelines. What dosage would you give to each of these animals?

  1. a 18 kg adult dog
  2. a 6 kg cat
  3. a 18 kg pregnant dog

Do Good Pet Vitamins

  • Adult dogs:

`1/2` tsp (tea spoon full) per 9kg body weight

  • Puppies, pregnant dogs, or nursing dogs:

`1/2` tsp per 4.5kg body weight

  • Cats:

`1/4` tsp per 1kg body weight

[2] Fractions and Decimals
Chapter: [2] Fractions and Decimals
Concept: undefined >> undefined

Diameter of Earth is 12756000 m. In 1996, a new planet was discovered whose diameter is `5/86` of the diameter of Earth. Find the diameter of this planet in km.

[2] Fractions and Decimals
Chapter: [2] Fractions and Decimals
Concept: undefined >> undefined
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