Important for :

1

2

B

The ratio of the saving = 6 : 8 : 5

So the saving of Ramesh, Suresh and Dinesh is 6x, 8x, 5x.

The saving of Ramesh is (100 – 70)% = 30% that is 6x. So the income is 6x ÷ 30 × 100 = 20x

The saving of Suresh is (100 – 75)% = 25% that is 8x. So the income is 8x ÷ 25 × 100 = 32x

The saving of Dinesh is (100 – 80)% = 20% that is 5x. So the income is 5x ÷ 20 × 100 = 25x

Total income = 20x + 32x + 25x

17325 = 77x

x = 225

Dinesh’s income = 25 × 225 = Rs. 5625.

Hence, option B is correct.

3

4

5

B

Let the marked price = Rs. 100aAt no discount,

Profit = x = 100a – 500 .............. (i)

At 30% discount,

The selling price = 70% of 100a = 70a

Profit = y = 70a – 500 ................... (ii)

At 20% and 10% two successive discount

= | 20 + 10 – 20 × 10 | = 28% discount |

100 |

The selling price = 72% of 100x = 72x

Profit = z = 72a – 500--------- (iii)

y – z – equation (iii) – (ii)

= 2a = 18

A = 9

Then from the equation (i)

x = 900 – 500 = 400

From the equation (ii)

y = 630 – 500 = 130

From the equation (iii)

z = 648 – 500 = 148

The required sum = 400 + 130 + 148 = 678

Hence, option B is correct.

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Here are some important examples regarding

12

15

8

Can't be determined

None of these

Total age of 20 aspirants = 20 × 19.2 = 384

Total age of 22 aspirants = 22 × 19.5 = 429

Total Age of new aspirants = 429 – 384 = 45 years

But we can not find the difference of the new aspirants'. So answer is can't be determined.

Hence, option D is correct.

Rs. 4500

Rs. 5625

Rs. 7200

Rs. 4800

None of these

So the saving of Ramesh, Suresh and Dinesh is 6x, 8x, 5x.

The saving of Ramesh is (100 – 70)% = 30% that is 6x. So the income is 6x ÷ 30 × 100 = 20x

The saving of Suresh is (100 – 75)% = 25% that is 8x. So the income is 8x ÷ 25 × 100 = 32x

The saving of Dinesh is (100 – 80)% = 20% that is 5x. So the income is 5x ÷ 20 × 100 = 25x

Total income = 20x + 32x + 25x

17325 = 77x

x = 225

Dinesh’s income = 25 × 225 = Rs. 5625.

Hence, option B is correct.

Rs. 2500

Rs. 2125

Rs. 2245

Rs. 2325

None of these

Let Rs. P be the principal value.

∴ 6000 = |
P × 5 × 6 | |

100 |

Amount = P × | ( | 1 + | R | ) |
^{2} |

100 |

= 20000 × | ( | 1 + | R | ) |
^{2} |

100 |

Hence, option E is correct.

All the above questions through, you must make sure about arithmetic miscellaneous questions which have been seen in the last few years. We hope this above

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Team Smartkeeda