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Number System
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Q201

Open question

Sum of three consecutive even integers is 54. Find the least integer among them.

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Q202

Open question

On multiplying a number by 7 all the digit in the product appear as 3's , the smallest such numbers is -

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Q203

Open question

Find the largest number, which exactly divides every number of the form (n³ - n) (n - 2) where n is a natural number greater than 2.

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Q204

Open question

Two number when divided by 17, leaves remainder 13 and 11 respectively. If the sum of those two numbers is divided by 17, the remainder will be ?

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Q205

Open question

Unit digit in

(264)^{102} + (264)^{103}

is :

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Q206

Open question

How many number between 1000 and 5000 are exactly divisible by 225 ?

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Q207

Open question

The greatest value among the fractions :

\frac{2}{7},

\frac{1}{3},

\frac{5}{6},

\frac{3}{4}

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Q208

Open question

The sum of three consecutive odd natural numbers each divisible by 3 is 63. What is the largest among them ?

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Q209

Open question

If the some of a number and its reciprocal be 2 then number is = ?

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Q210

Open question

If two numbers are each divided by the same divisor, the remainder are respectively 3 and 4. If the sum of two numbers be divided by the same divisor, the remainder is 2. The divisor is -

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Q211

Open question

The sum of three numbers is 2, the 1^st number is

\frac{1}{2}

times the 2^nd and the 3^rd number is

\frac{1}{4}

times the 2^nd number. The 2^nd number is :

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Q212

Open question

If the product of two positive numbers be 1575 and their ration is 7 : 9, then the greatest number is :

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Q213

Open question

A number when divided by 729 given a remainder of 56. What will we get as remainder if the same number is divided by 27 ?

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Q214

Open question

Sum of two numbers is thrice their difference. Their ratio is :

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Q215

Open question

A number when divided by the sum of 555 and 445 gives two times their difference as quotient and 30 as the remainder. The number is -

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Q216

Open question

When simplified the product :

(2 - \frac{1}{3})

(2 - \frac{3}{5})

(2 - \frac{5}{7})

.....

(2 - \frac{997}{999})

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Q217

Open question

The smallest possible three placed decimal is-

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Q218

Open question

The divisor is 25 times of the quotient and 5 times the remainder. If the quotient is 16, the dividend is-

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Q219

Open question

A runner runs

1 \frac{1}{4}

laps of a 5 laps race. What laps of the race remains to be run ?

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Q220

Open question

\frac{1}{10}

of a rod is coloured red,

\frac{1}{20}

orange,

\frac{1}{30}

yellow,

\frac{1}{40}

green,

\frac{1}{50}

blue,

\frac{1}{60}

black and the rest is violet. If the length of the violet part of the rod is 12.08 mtr, then the length of the rod is -

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Number Systempractice.

Number System
practice.