Page 95 - Viva ICSE Computer Studies 4 : E-book

5. Which of the following will complete the pattern ________?

(a) (b) (c) (d)

SECTION C: CODING AND DECODING

1. If COMPUTERS is # @ ! 3 4 J * ^ ), then code for ROUTE is _________.

(a) * J 4 @ ^ (b) ^ @ 4 J * (c) ^ * 4 J (d) * @ ^ ) #

2. In a certain code, FAMILY is written as UZNROB; then what is DZHGV?

(a) WASTE (b) ROUTE (c) GRASP (d) GRADE

3. If GOODS is written as FNNCR, then how will you write SCENE?

(a) TDFOF (b) RBDMD (c) ENECS (d) DMDBR

4. If PEACH is coded as RGCEJ, how will you code SCRATCH?

(a) HCTARCS (b) UETCVEJ (c) JEVCTEU (d) JECGRFA

5. If REFRIGERATE is coded as TRGRERFIEAE, then AMMUNITIONS is coded as ________.
(a) NIIUMAMNTOS (b) SNOITINUUMMA (c) NUMMASNOITI (d) SNOITIAMMLLN

SECTION D: MENTAL MATHS

1. Rahul’s mother went to the market with ` 1500/-. Upon coming back, she had only
` 250/- left in her purse. Given below are the details of her shopping. Fill in the blanks to
complete her calculations.

Item Quantity Amount Price

1. Apples 2 Kg 100/– 200/–
2. Soap ____ bars 50/– 300/–

3. Mangoes 5 Kg 80/– ____
4. Broom 1 50/– 50/–
5. Chocolates 4 ____/– 200/–

6. Salt ____ Kg 20/– 100/–
Total = ________
Balance = ` 250/–

83