Solve the following mathematical problems:

The sum of the digits of a two-digit number is subtracted from the number. How two-digit numbers can be formed so that the digit in the unit place of the resulting number many such 6?

Created: 3 months ago | Updated: 3 months ago
Job Solution Bangladesh Bank Bangladesh Bank Recruitment Test for Officer (General) Examination Held On: 25.05.2018 || 2018 গণিত
193
Add Description

Let the number be 10X + Y, (Y is in unit place and X is in the tenth place) 

So the sum of the digits will be X + Y if the sum of the digits subtracted from the number than the result will be 10X + Y - (X + Y) = 9X

So the number resulting will be always the product of 9 so if its need to have 6 in unit place

So the value of X must be 4 as e result it will be 9 × 4 = 36 here 6 in the unit place so all the two digit number which has 4 in tenth places will be the number

 So total such number will be 10 (40, 41, 42, 43, 44, 45, 46, 47, 48, 49) (ans.)

3 months ago
0 0
স্বপ্নদর্শী
Verified

Related Questions

Differentiate financial and economic costs with suitable example. The total revenue (TR) and Average Cost (AC) functions of a firm are given by TR=4350Q-13Q2AC=Q2-5.5Q +150+675Q2 Where Q refers to quantity of output. Find the profit maximizing level of output and maximum profit.

Created: 3 months ago | Updated: 3 months ago
Job Solution Bangladesh Bank Bangladesh Bank || Assistant Director (19-04-2019) || 2019 গণিত
382
Add Description

Suppose C=$35+0.80Yd, I = $70, G= $65, Tx = 0.10Y.

Find the equilibrium output,

Created: 3 months ago | Updated: 3 months ago
Job Solution Bangladesh Bank Bangladesh Bank || Assistant Director (19-04-2019) || 2019 গণিত
328
Add Description

Suppose C=$35+0.80Yd, I = $70, G= $65, Tx = 0.10Y.

What are the tax revenue at equilibrium output? Does the government have a balanced budget?

Created: 3 months ago | Updated: 3 months ago
Job Solution Bangladesh Bank Bangladesh Bank || Assistant Director (19-04-2019) || 2019 গণিত
327
Add Description

Suppose C=$35+0.80Yd, I = $70, G= $65, Tx = 0.10Y.

Find the equilibrium output when investment increases from $70 to $90.

Created: 3 months ago | Updated: 3 months ago
Job Solution Bangladesh Bank Bangladesh Bank || Assistant Director (19-04-2019) || 2019 গণিত
306
Add Description

Suppose C=$35+0.80Yd, I = $70, G= $65, Tx = 0.10Y.

What has happened to the relationship of government spending and tax revenues? Why?

Created: 3 months ago | Updated: 3 months ago
Job Solution Bangladesh Bank Bangladesh Bank || Assistant Director (19-04-2019) || 2019 গণিত
320
Add Description