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Combined 9 Bank
Sonali-Janata-Rupali-BDBL BKB-RAKUB-KB-ICB-BHBFC
Post: Officer (General)
Written Math Solution
Exam Date: 18-01-2022

A. Sana and Ripa earn in the ratio 2:1. They spend in the ratio 5:3 and save in the ratio 4:1. If the total monthly savings of Sana and Ripa are The 5,000, calculate the monthly income of Ripa?

B. A certain amount increases by 600 in six years as simple interest rate. What will be the interest of Tk.12000 after 3 years at the same rate compounded annually?

C. A square field of side 30 meters, 4 cows are grazing the field as they are tied at each of the four corners with 14 meter long rope for each cow What is the ungrazed area in the field?

D. There are two examination rooms A and B. If 10 students are sent from A to B, the number of students in each room is the same. If 20 candidates are sent from B to A, then the number of students in A is doubles the number of students in B. What is the number of students in room A ?

E. If m and n are whole numbers much that m^n =121, what is the value of (m-1)^(n+1)?