X Unit 18 ex 18.5 Variation class 10 | Matric Exercise 18.5 Sindhi text book 10th

Chapter 18|Variations | Ex 18.5 |Sindh Board| lecture # 9| Class 10 | Maths| New book Exercise 18.5 Ex 18.5 Q1 Ex 18.5 Q2 Ex 18.5 Q3 Ex 18.5 Q4 Ex 18.5 Q5 Exercise 18.5 Q1 Exercise 18.5 Q2 Exercise 18.5 Q3 Exercise 18.5 Q4 Exercise 18.5 Q5 1. If y varies dircctly as and z and y=6 when x=4,z =9. Write y as a function of x and z and determine the value of y when x=-8 and 12 2. If y varies directly asx and u'and inversely as v and t. y-40 when x=8, u=5, v=3 and t= 2 find y in terms of x,u, v and t. Also find the value of y when x=-2, u=4, V =3, t=-1. 3. If w varies directly as u' and inversely as cubic root of v and w = 216 when u=6 and v=27. Find the value of w when u =10 and v =125. If the time period T of simple pendulum is directly proportional to the square root of its length L and inversely proportional to the square root of acceleration due to gravity 'g' ifT-2sec L=100cm and g -9.8m's. Find time period of simple pendulum when L -200m and g =7.6 at a particular height. S. The volume V of a particular gas is directly proportional to the temperature T and inversely proportional to the square root of pressure. If V=100, T -30 and P -64. Find the value of V when T-60 and P=81. #class10maths #directproportion #inverseproportion #chapter18 #variations #variation #class10th #class10 #sirsalmanariftabani Exercise 18.5 1. If y varies directly as x* and z and y-6 when x=4,z =9. Write y as a function of x and z and determine the value of y when x=-8 and =12 2. If y varies directly as x and u and inversely as v and t. y-40 when x=8, u=5, v=3 and t= 2 find y in terms of x,u, v and t. Also find the value of y when x=-2, u=4, V =3, t=-1. 3. If w varies directly as u and inversely as cubic root of v and w =216 when u=6 and v-27. Find the value of w when u =10 and v -125. 4. If the time period T of simple pendulum is directly proportional to the square root of its length L and inversely proportional to the square root of acceleration due to gravity 'g' if T -2sec L=100cm and g -9.8m/s. Find time period of simple pendulum when L -200m and g-7.6 at a particular height. 5. The volume V of a particular gas is directly proportional to the temperature T and inversely proportional to the square root of pressure. If V=100, T -30 and P -64. Find the value of V when T=60 and P=81