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Follow BODMAS rule to solve this question, as per the order given below.

Step - 1: Parts of an equation enclosed in 'Brackets' must be solved first, and following BODMAS rule in the bracket -

Step - 2: Any mathematical 'Of' or 'Exponent' must be solved next.

Step - 3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated.

Step - 4: Last but not the least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given expression is

78 × 16 + 285 + 648 - 17 × 25 = ?

⇒ 1248 + 285 + 648 - 425 = ?

⇒ 2181 - 425 = ?

⇒ ? = 1756

Hence, 1756 will come in the place of (?).

Follow BODMAS rule to solve this question, as per the order given below.

Step - 1: Parts of an equation enclosed in 'Brackets' must be solved first, and following BODMAS rule in the bracket -

Step - 2: Any mathematical 'Of' or 'Exponent' must be solved next.

Step - 3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated.

Step - 4: Last but not the least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given expression is

[1250 ÷ 25 × 4 + (480 ÷ 60)] = ?

⇒ [1250 ÷ 25 × 4 + (8)] = ?

⇒ 50 × 4 + (8) = ?

⇒ 200 + 8 = ?

⇒ ? = 208

Hence, 208 will come in the place of (?).

Follow BODMAS rule to solve this question, as per the order given below.

Step - 1: Parts of an equation enclosed in 'Brackets' must be solved first, and following BODMAS rule in the bracket -

Step - 2: Any mathematical 'Of' or 'Exponent' must be solved next.

Step - 3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated.

Step - 4: Last but not the least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given expression is

√2025 ÷ 9 × 3 of (15 - 7) + 40 = ?

⇒ 45 ÷ 9 × 3 of (8) + 40 = ?

⇒ 45 ÷ 9 × 24 + 40 = ?

⇒ 5 × 24 + 40 = ?

⇒ 120 + 40 = ?

⇒ ? = 160

Hence, 160 will come in the place of (?).

Follow BODMAS rule to solve this question, as per the order given below.

Step - 1: Parts of an equation enclosed in 'Brackets' must be solved first, and following BODMAS rule in the bracket -

Step - 2: Any mathematical 'Of' or 'Exponent' must be solved next.

Step - 3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated.

Step - 4: Last but not the least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given expression is

36 - {(14 - 3 of 2 × 4) + 5 of 3} = ?

⇒ 36 - {(14 - 6 × 4) + 15} = ?

⇒ 36 - {(14 - 24) + 15} = ?

⇒ 36 - {(-10) + 15} = ?

⇒ 36 - 5 = ?

⇒ ? = 31

Hence, 31 will come in the place of (?).

Solution :

 Concept used :

 Follow the BODMAS rule to solve this question, as per the question is given below:

 Step 1: Parts of an equation enclosed in ' Brackets ' must be solved first and in the bracket,

 Step 2: Any mathematical ' of ' or 'exponent' must be solved next,

 Step 3: Next, The part of the equation that contains 'Division' and 'multiplication' are calculated,

 Step 4: Last but not least, the parts of the equation that contains 'Addition ' and 'Subtraction' should be calculated

 Given :

⇒440 - (34 × 5)   =  ?² - 91% of 100

⇒440 - (170)  =  ?² - 91 × 100 / 100

⇒440 - 170 =  ?² - 91

⇒270 + 91 = ?²

⇒361 = ?²

⇒(19)^2×1/2 = ?^2×1/2

⇒19 = ? 

Hence 19 is the correct answer.

Given:

Number of accounts opened (in hundreds) in four share broker in various months

Calculation:

The month in which total accounts opened is maximum will also have the maximum average

The total number of account opened in Jan = (25 + 22 + 30 + 35)

⇒ 112

The total number of account opened in Feb = (28 + 18 + 45 + 42)

⇒ 133

The total number of account opened in March = (35 + 32 + 50 + 45)

⇒ 162

The total number of account opened in April = (65 + 30 + 35 + 50)

⇒ 180

As we can see the total accounts opened in April is the maximum, so the average will also be maximum (Since the total number of Accounts is 4 in each month so each term will be divided by 4)

∴ The maximum average of accounts opened is in April.

Given:

Number of accounts opened (in hundreds) in four share broker in various months

Calculation:

The number of accounts opened in April = (65 + 30 + 35 + 50)

⇒ 180

The number of accounts opened in Feb = (28 + 18 + 45 + 42)

⇒ 133

Required percentage = [(180 – 133)/133] × 100

⇒ (47/133) × 100

⇒ 35.33

∴ Required percentage is 35.33%

Given:

Number of accounts opened (in hundreds) in four share broker in various months

Calculation:

Average is directly proportional to the total sum:

The greater the sum, the greater the average is:

The total number of account opened by A in all the month = (25 + 28 + 35 + 65)

⇒ 153

The total number of account opened by B in all the month = (22 + 18 + 32 + 30)

⇒ 102

The total number of account opened by C in all the month = (30 + 45 + 50 + 35)

⇒ 160

The total number of account opened by D in all the month = (35 + 42 + 45 + 50)

⇒ 172

∴ The average number of accounts opened is the maximum in D

Given:

Number of accounts opened (in hundreds) in four share broker in various months

Calculation:

To take the average is not needed as we can get the answer by total sum only.

The total number of accounts opened of D = (35 + 42 + 45 + 50)

⇒ 172

Average = 172/4

The total number of accounts opened of B = (22 + 18 + 32 + 30)

⇒ 102

Average = 102/4

Required percentage = [(172/4 – 102/4)/102/4] × 100

⇒ [70/102] × 100

⇒ 68.62

∴ Required percentage is 68.62

Given:

Number of accounts opened (in hundreds) in four share broker in various months

The total number of accounts opened of Jan = (25 + 22 + 30 + 35)

⇒ 112 x 100 = 11200

 ∴ Required answer is 11200