Using and Managing Data and Information

Using and Managing Data and Information

Contents
MAIN BODY..............................................................................................................................................3
Task 1......................................................................................................................................................3
Task 2......................................................................................................................................................4
Task 3......................................................................................................................................................4
Task 4......................................................................................................................................................5
Task 5......................................................................................................................................................6
Task 6......................................................................................................................................................6
Task 7......................................................................................................................................................8
Task 8......................................................................................................................................................9
Task 9......................................................................................................................................................9
Task 10..................................................................................................................................................10
TASK 11...................................................................................................................................................11
TASK 12...................................................................................................................................................11

MAIN BODY
Task 1
(a) 1.88
In the calculator first we enter 1.8 and then will use power button by entering power 8 of
1.8. After that we click on equal button to measure the value.
110.19
(b) 5√243
= 15.58
It has been measured by help of using root tab in the calculator.
(c) 1 / (1+0.07) 3
Under this first we will add 1 and 0.07 that will be of 1.07. After this we will measure
power 3 of 1.07 by entering power button in calculator and value will be of 1.22. Further,
we will divide 1 from 1.22 to get the answer.
= 1/1.22
= 0.82
(d) 2500 x 5-3
Under this, first we will compute value of 5-3 by entering number 5 in calculator and
measuring power -3. By which we will get 0.008 and this value will be multiplied to
reach the answer.
=2500*0.008
=20
(e) 34.18 + √79/ 0.4375−2.28

First of all we will find under root value of 79 by entering root button in calculator. The
value will be 8.89 and it will add in 34.18, it will be of 43.07. After this we will subtract
0.4375 from 2.28 and value will be -1.84. In the end we will enter, 43.07 and divide it by
-1.84 to get the answer.
34.18+8.89/-1.84
= -23.40
Task 2
a) How much would an 11-minute call to New York cost?
Rate per minute: 5/2.90
= £1.72
Cost for 11 minute: £1.72*11
=£ 18.96
b) Bill’s call costs £9.86. How long (in minutes) was his call?
= 9.86/1.72
= 5.73 Minutes
Task 3
(a) One person’s efficiency to paint: 3/5
= 180 Minutes/5
= 36 Minutes
Time taken by 6 people: 6*36 Minutes
= 216 Minutes or 3.6 Hours or 3 hours and 36 Minutes