What is the sum of two consecutive even numbers the difference of whose squares is 84

Created: 5 months ago | Updated: 3 days ago

৫৮

Job Solution Probashi Kallyan Bank Officer (Cash)-25-09-2021 গণিত

406

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Let the numbers be x and x + 2.

Then, (x + 2)² - x² = 84

4x + 4 = 84

4x = 80

x = 20.

The required sum = x + (x + 2) = 2x + 2 = 42.

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In a certain class consisting of 36 students , some boys and some girls exactly 1/3 of the boys and exactly 1/4 of the girl walk to school. what is the greatest class who walk to school?

Created: 5 months ago | Updated: 2 days ago

৯

১০

১১

Job Solution Probashi Kallyan Bank প্রবাসী কল্যাণ ব্যাংক-সিনিয়র অফিসার-09-10-2021 গণিত

1808

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A sum of miney amounts to Tk 9800 after 5 years and Tk. 12005. after 8 years at the same rate of simple interest. The rate of interest per annum is.

Created: 5 months ago | Updated: 2 days ago

৫%

৮%

১২%

15%

Job Solution Probashi Kallyan Bank প্রবাসী কল্যাণ ব্যাংক-সিনিয়র অফিসার-09-10-2021 গণিত

1108

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One third of the Faculty membes of a department are female. Sixteen of the male teachers are unmarried. While 60% of them are married, The total number of faculty members in the department is-

Created: 5 months ago | Updated: 2 days ago

৩০

৯০

Job Solution Probashi Kallyan Bank প্রবাসী কল্যাণ ব্যাংক-সিনিয়র অফিসার-09-10-2021 গণিত

1346

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A certain class is divided into two section A and B of equal numbr of students. If the ratio of girls to buys for whole class is 3/5 and the ration of girls to boys in section A is 5/7. What is the ratio o fgirls to biys in section B?

Created: 5 months ago | Updated: 2 days ago

3 to 1

2 to 1

1 to 3

1 to 2

Job Solution Probashi Kallyan Bank প্রবাসী কল্যাণ ব্যাংক-সিনিয়র অফিসার-09-10-2021 গণিত

1735

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Given that $1^{2} + 2^{2} + 3^{2} . . . . . + 10^{2} = 385, w h a t i s t h e v a l u e o f 3^{2} + 6^{2} + 9^{2} + . . . . . 30^{2} ?$

Created: 5 months ago | Updated: 2 days ago

1,155

১,৫৪০

1,925

3,465

Job Solution Probashi Kallyan Bank প্রবাসী কল্যাণ ব্যাংক-সিনিয়র অফিসার-09-10-2021 গণিত

1705

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