1. Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is heart is: (Janata Bank. Assistant Executive Officer: 2019)

2/20

13/102

29/34

47/100

2. The difference between the compound interest and the simple interest on a certain sum at 5% per annum for 2 years in Tk. 1.50> The sum is --- (Janata Bank. Assistant Executive Officer: 2019)

Tk. 500

Tk. 400

Tk. 300

Tk. 600

3. How many liters of a 90% of concentrated acid needs to be mixed with a 75% solution of concentrated acid to get a 30 liter Solution of 78% concentred acid? (Janata Bank. Assistant Executive Officer: 2019)

8

6

7

9

4. If 1/5:1/N = 1/N : 1/1.25, then the value of N is---- (Janata Bank. Assistant Executive Officer: 2019)

1.25

1.5

2.25

2.5

5. A shopkeeper marks the price of an article at Tk. 80. What will be the selling price, if he allows two successive discounts of 5

Tk. 72

Tk. 85

Tk. 72.2

Tk. 7.2

6. A, B and C investment in a partnership in the ratio of 5 : 6 : 8 . The ratio of their profit is 5 : 3 : 12. Find the ratio of time for their investment? (Janata Bank. Assistant Executive Officer: 2019)

2:1:3

1:3:5

1:3:5

4:3:5

7. A man takes twice as long to row a distance against the stream as to row the same distance in favor of the stream. The ratio of the speed of the boat ( in still water ) and the stream is : (Janata Bank. Assistant Executive Officer: 2019)

2:1

3:2

4:3

3:1

8. A man can reach a certain place in 40 hours. If he reduces his speed by 1/15th, he goes 6 Km less in that time. Find the total distance covered by him. (Janata Bank. Assistant Executive Officer: 2019)

60 km

85 km

75 km

52 km

9. Nikki is 25% more efficient than Tina. Tina alone can build a craft in 20 days. Find the number of days taken by Nikki to finish the same piece of work? (Janata Bank. Assistant Executive Officer: 2019)

16

17

18

19

10. A lent Tk. 5000 to B for 2 years and Tk. 3000 to C for 4 years on simple interest at the same rate of interest and received Tk. 2200 in all from both of them as interest. The rate of interest per annum is :(Janata Bank. Assistant Executive Officer: 2019)

5%

7%

7 .1/2 %

10%