ICSE Class 7 Answered
Q. A man runs round a circular field or radius 50m at a speed of 12 km/h. What time is taken by the man to make twenty rounds of the field
Asked by shrimukhtripathi786 | 18 Feb, 2019, 01:34: PM
Expert Answer
circumference of circular field = 2πr = 2×π×50 = 100π m
distance of 50 rounds = 50×100π m = 5π km
running speed = 12 km/hr
time taken to complete 50 rounds = 5π/12 = 1.3 hr = 1hr 18 min
Answered by Thiyagarajan K | 18 Feb, 2019, 02:39: PM
Application Videos
-
Algebraic Identities
This video explains the concept of Algebraic Identities. -
Expansion using Algebraic Identities_2
This video explains the concept of Expansion using Standard Algebraic Ident... -
Expansion using Algebraic Identities_1
This video explains the concept of Expansion using Algebraic Identities.
Concept Videos
-
Construction of Rhombus
Construction of rhombus given side and angle, both diagonals -
Construction of squares and rectangles
construction of square given side and diagonals,construction of rectangles -
Pair of Lines
parallel lines, transversals,corresponding angles, alternate angles,cointer... -
Surface Area: Cubes and Cuboids
cubes and cuboids, finding their surface area -
Construction of Parallel Lines
Construction of parallel lines using ruler and compass, setsquare
ICSE 7 - Maths
Asked by srilatha24latha | 25 Mar, 2024, 08:10: PM
ANSWERED BY EXPERTICSE 7 - Maths
Asked by arorahimanshi88 | 10 Mar, 2024, 03:37: PM
ANSWERED BY EXPERTICSE 7 - Maths
Asked by bhaskhar9043 | 03 Mar, 2024, 01:16: PM
ANSWERED BY EXPERTICSE 7 - Maths
Asked by sotorupa21 | 23 Feb, 2024, 11:39: AM
ANSWERED BY EXPERTICSE 7 - Maths
Asked by miloni77 | 22 Feb, 2024, 05:38: PM
ANSWERED BY EXPERT
ICSE 7 - Maths
Asked by renurajawat01234 | 07 Feb, 2024, 04:22: PM
ANSWERED BY EXPERT
