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Properties of Determinants

If 5 + 3 = 15...

Question

If 5 + 3 = 15, 5 – 3 = 8 and 5 ÷ 3 = 2, then 7 + 7 – 7 ÷ 7 = ?.

यदि 5 + 3 = 15, 5 – 3 = 8 तथा 5 ÷ 3 = 2, तब 7 + 7 – 7 ÷ 7 = ?

A

1

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B

7

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C

49

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D

13

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Solution

The correct option is C 49
Answer (c)

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Similar questions

Q. If 2 × 3 = 5, 7 + 5 = 2 and 5 ÷ 2 = 10, then value of 7 × 7 + 7 ÷ 7 is

यदि 2 × 3 = 5, 7 + 5 = 2 तथा 5 ÷ 2 = 10, तब 7 × 7 + 7 ÷ 7 का मान है

Verify the following :

(i) $\frac{3}{7} \times (\frac{5}{6} + \frac{12}{13}) = (\frac{3}{7} \times \frac{5}{6}) + (\frac{3}{7} \times \frac{12}{13})$
(ii) $\frac{- 15}{4} \times (\frac{3}{7} + \frac{- 12}{5}) = (\frac{- 15}{4} \times \frac{3}{7}) + (\frac{- 15}{4} \times \frac{- 12}{5})$
(iii) $(\frac{- 8}{3} + \frac{- 13}{12}) \times \frac{5}{6} = (\frac{- 8}{3} \times \frac{5}{6}) + (\frac{- 13}{12} \times \frac{5}{6})$
(iv) $\frac{- 16}{7} \times (\frac{- 8}{9} + \frac{- 7}{6}) = (\frac{- 16}{7} \times \frac{- 8}{9}) + (\frac{- 16}{7} \times \frac{- 7}{6})$

(\frac{- 5}{7} + \frac{8}{21}) \times (\frac{7}{3} \div \frac{2}{15})

Solve:

(a) (b)

(c) (d)

(e) (f)

(g) (h)

(i)

7

which is not immediately preceded by

5

but is immediately followed by either

2

3

. How many such

7^{'} s

57265738373257273482678

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Properties of Determinants

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