Mathematics carries the highest weight in AISSEE — 150 of 300 marks in Class 6 and 200 of 400 marks in Class 9 — and it is also a key section of the RMS CET. Practise these 10 MCQs on Conversion of Units, then check your answers and step-by-step solutions in the answer key at the end.
Quick facts: AISSEE 2027 will be held on Sunday, 31 January 2027. There is no negative marking, so attempt every question. Online applications are open until 2 December 2026 on exams.nta.nic.in/sainik-school-society.
Practice Questions
Q1. Convert 250 cm into m.
(A) 25 m
(B) 0.25 m
(C) 2.5 m
(D) 250 m
Q2. How many grams are there in 5 kg 75 g?
(A) 575 g
(B) 5075 g
(C) 80 g
(D) 5750 g
Q3. How many minutes are there in 2 hours 15 minutes?
(A) 215 minutes
(B) 145 minutes
(C) 135 minutes
(D) 63 minutes
Q4. Express 5 litres 500 ml in millilitres.
(A) 1000 ml
(B) 5500 ml
(C) 10000 ml
(D) 505 ml
Q5. Convert 4.25 m into cm.
(A) 425 cm
(B) 4250 cm
(C) 42.5 cm
(D) 42500 cm
Q6. How many grams are there in 3 kg 500 g?
(A) 800 g
(B) 503 g
(C) 8000 g
(D) 3500 g
Q7. How many minutes are there in 3 hours 40 minutes?
(A) 340 minutes
(B) 220 minutes
(C) 230 minutes
(D) 112 minutes
Q8. Convert 3.5 km into m.
(A) 35000 m
(B) 350 m
(C) 3500 m
(D) 350000 m
Q9. How many minutes are there in 1 hour 45 minutes?
(A) 105 minutes
(B) 145 minutes
(C) 115 minutes
(D) 69 minutes
Q10. Express 3 litres 250 ml in millilitres.
(A) 550 ml
(B) 5500 ml
(C) 253 ml
(D) 3250 ml
Answer Key with Explanations
(C) 2.5 m — 1 cm = 0.01 m; so 250 cm = 2.5 m.
(B) 5075 g — 5 kg = 5000 g; 5000 + 75 = 5075 g.
(C) 135 minutes — 2 h = 120 min; 120 + 15 = 135 minutes.
(B) 5500 ml — 1 litre = 1000 ml; total = 5500 ml.
(A) 425 cm — 1 m = 100 cm; so 4.25 m = 425 cm.
(D) 3500 g — 3 kg = 3000 g; 3000 + 500 = 3500 g.
(B) 220 minutes — 3 h = 180 min; 180 + 40 = 220 minutes.
(C) 3500 m — 1 km = 1000 m; so 3.5 km = 3500 m.
(A) 105 minutes — 1 h = 60 min; 60 + 45 = 105 minutes.
(D) 3250 ml — 1 litre = 1000 ml; total = 3250 ml.
How did you score?
9–10 correct: excellent — move on to a full-length mock test. 6–8: good — revise the explanations of the questions you missed. Below 6: study this topic again from your NCERT book and retry these questions after two days.
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