JSS2 FIRST TERM EXAMINATION ON BCS 2025/2026 SECTION

SECTION A: OBJECTIVES Instruction: Answer all questions from this section.

1. Convert 11111 two to base ten

2. What is one - eighth of 25% expressed as ratio

3. Express one hundred and eighty-five thousandths as decimal

4. Express 4min 40sec as a fraction of 1 hour

5. What is the value of x in 6x + 1 = 8⅕

6. Round off 343.515 to 1 significant figure

7. Find the square root of 225 using prime factors

8. Convert ⁵/30 to 3 decimal places

9. The last digit of an even and odd binary number is __ and __

10. Express ¾ as percentage

11. If 125g of medicine cost $1000 . What is the cost of 1g of medicine

12. Simplify 1110 two -1001 two

13. Convert 43 in base 10 to binary

14. One omong the following is not equivalent to ⅘

15. Evaluate ⁵/16 ÷ 8 ¾

16. The product of 4⅕ and a number is 42. What is the number?

17. Calculate one fifth of $2,350

18. A box can hold 32 cans, how many boxes are needed to pack 800 cans

19. What is the number that multiples itself to give 6¼

20. Simplify -5-7+82 in base 2

SECTION B: Subjective

21. If y + 111 two = 1101 two, find y

22. Find three common multiples of 3 and 5

23.Simplify [ ⅜ ÷5¼] of ⅙

24. Simplify 3⅞ + 7¾ - 6½

25. A student spends 37.5% of her money on food, 28.75% on rent and 15% on books . What percentage of her money is left to spend on other things.

26. Evaluate ¹²/15 x (1¼)²

27. Reduce 375/225 to its lowest term

28.Arrange the following fractions in ascending order; ⅜, ⁷/12, ⅔ , ⅚, ⁵/24

29.Express 360 ml as a fraction of 2 liters

30.Multiply 1011 base two by 101 base two

SECTION C: THEORY Instruction: answer any 4 questions from this section

1). A typist types 60 words per minute. Estimate how long it will take to type a letter of 7200 words (II) Approximately how many lines will she take to type 7200 words if she writes 20 words per line (Ill) if her exercise books have 36 lines per page, estimate the number of pages, 7200 words would take?

2). Find the value of m, y and x in the following the equation; (I) m in; 17m-2(6m+1) =27 (I) y in; 5(3y-1)=40 (Ii)x in ; 3x +7 = 4x-2

3a). Simplify 841.0056 + 47.0160 + 9.052

3b). Convert any 3 prime numbers between 10 and 20 to binary number

4a. Find the difference between the sum of 4¾ and 3⅓ and the product of 2 ½ and 2⅘

4b. Round off the following numbers (I) 18625 to thousand (II) 2.341 to tenth (III) 25.43 to 1 significant figures (IV) 0.3457 to 3 decimal places

5a). Find the square of 110two

5b) Evaluate (4 ½)² -(3½)²

6a) Convert the following to decimal (i)8 ¾ (ii) 245%

6b). A medicine bottle contains 300ml of cough syrup, the label says take two spoons five times daily. If 1 teaspoon equals 6ml , estimate how many days the medicine will last?