Case Based Questions (MCQ)

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Chapter 4 Class 10 Quadratic Equations
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Question 2 - Case Based Questions (MCQ) - Chapter 4 Class 10 Quadratic Equations

Last updated at April 16, 2024 by

The speed of a motor boat is 20 km/hr. For covering the distance of 15 km the boat took 1 hour more for upstream than downstream.

The speed of a motor boat - Teachoo.jpg

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Question 1

Let speed of the stream be x km/hr. then speed of the motorboat in upstream will be
(a) 20 km/hr
(b) (20 + x) km/hr
(c) (20 – x) km/hr
(d) 2 km/hr

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Question 2

What is the relation between speed ,distance and time?
(a) speed = (distance )/time
(b) distance = (speed )/time
(c) time = speed x distance
(d) speed = distance x time

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Question 3

Which is the correct quadratic equation for the speed of the current ?
(a) x 2 +30x-200=0
(b) x 2 +20x-400=0
(c) x 2 +30x-400=0
(d) x 2 -20x-400=0

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Question 4

What is the speed of current ?
(a) 20 km/hour
(b) 10 km/hour
(c) 15 km/hour
(d) 25 km/hour

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Question 5

How much time boat took in downstream?
(a) 90 minute
(b) 15 minute
(c) 30 minute
(d) 45 minute

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Transcript

Question The speed of a motor boat is 20 km/hr. For covering the distance of 15 km the boat took 1 hour more for upstream than downstream.Question 1 Let speed of the stream be x km/hr. then speed of the motorboat in upstream will be (a) 20 km/hr (b) (20 + x) km/hr (c) (20 – x) km/hr (d) 2 km/hr (c) (20 – x) km/hr Question 2 What is the relation between speed ,distance and time? (a) speed = (distance )/time (b) distance = (speed )/time (c) time = speed x distance (d) speed = distance x time (b) distance = (speed )/time Question 3 Which is the correct quadratic equation for the speed of the current ? (a) 𝑥^2+30𝑥−200=0 (b) 𝑥^2+20𝑥−400=0 (c) 𝑥^2+30𝑥−400=0 (d) 𝑥^2−20𝑥−400=0(c) 𝑥^2+30𝑥−400=0 Question 4 What is the speed of current ? (a) 20 km/hour (b) 10 km/hour (c) 15 km/hour (d) 25 km/hour(b) 10 km/hour Question 5 How much time boat took in downstream? (a) 90 minute (b) 15 minute (c) 30 minute (d) 45 minute(d) 45 minute

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo