The average age of the 20 aspirants of a class is 19.2 years. After some time two more aspirants join them and then average is increased by 0.3 years. Find the difference between the age of new aspirants .

Created: 4 months ago | Updated: 2 months ago

১৫

১৮

None of these

Job Solution Combined Bank (সমন্বিত ব্যাংক) জনতা ও রূপালী ব্যাংক- অফিসার ১৩.১২.২০১৯ গণিত

594

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If f is a function defined from R is given by f (x) = 3x -5, then $f^{- 1}$ (x) is given by :

Created: 5 months ago | Updated: 2 months ago

1/(3x-5)

(x +5)/3

does not exist since it is not a bisection

(3x + 5)/3

Job Solution Combined Bank (সমন্বিত ব্যাংক) Assit. Programmer | Sonali Bank, Rubali Bank, BD Krishi Bank - 16.11.2018 গণিত

537

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A box is made in the form of a cube. If a second cubical box has inside dimensions three times those of the first box, how many times as much does the second box contain?

Created: 4 months ago | Updated: 2 months ago

২৭

৯

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444

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If number a is $2^{2} \times 3^{1} \times 5^{0} a n d b i s 2^{1} \times 3^{1} \times 5^{1} t h e n 1 c m o f a, b i s :$

Created: 5 months ago | Updated: 2 months ago

2^{2} \times 3^{1} \times 5^{1}

2^{2} \times 3^{2} \times 5^{2}

2^{3} \times 3^{1} \times 5^{0}

2^{2} \times 3^{2} \times 5^{0}

Job Solution Combined Bank (সমন্বিত ব্যাংক) Assit. Programmer | Sonali Bank, Rubali Bank, BD Krishi Bank - 16.11.2018 গণিত

342

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If three boys can paint a wall in 2 days , what part of the job can be completed by two boys in 1 day ?

Created: 4 months ago | Updated: 2 months ago

১/৩

2/3

৩/৪

4/2

Job Solution Combined Bank (সমন্বিত ব্যাংক) Assit. Programmer | Sonali Bank, Rubali Bank, BD Krishi Bank - 16.11.2018 গণিত

1026

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which one of the following fractions is closest to $\frac{1}{4} ?$

Created: 4 months ago | Updated: 2 months ago

\frac{1}{5}

\frac{3}{10}

\frac{3}{20}

\frac{4}{15}

Job Solution Combined Bank (সমন্বিত ব্যাংক) Assit. Programmer | Sonali Bank, Rubali Bank, BD Krishi Bank - 16.11.2018 গণিত

1054

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The average age of the 20 aspirants of a class is 19.2 years. After some time two more aspirants join them and then average is increased by 0.3 years. Find the difference between the age of new aspirants .

Related Questions

If f is a function defined from R is given by f (x) = 3x -5, then f-1 (x) is given by :

A box is made in the form of a cube. If a second cubical box has inside dimensions three times those of the first box, how many times as much does the second box contain?

If number a is 22×31×50 and b is 21×31×51 then 1cm of a, b is :

If three boys can paint a wall in 2 days , what part of the job can be completed by two boys in 1 day ?

which one of the following fractions is closest to 14?

If f is a function defined from R is given by f (x) = 3x -5, then $f^{- 1}$ (x) is given by :

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which one of the following fractions is closest to $\frac{1}{4} ?$