The next number is 48.
100, 90, 81, 73, 66, 60, 55 It's a decreasing sequence 100-10=90 90-9=81 81-8=73 73-7=66 66-6=60 60-5=55
100, 90, 81, 73, 66, 60, 55 It's a decreasing sequence 100-10=90 90-9=81 81-8=73 73-7=66 66-6=60 60-5=55
25, 36, 49, 64, 81, 100...
This is called "square" sequence.144 = 122121 = 11264 = 8249 = 72Thus the missing numbers are 92 and 102 which are 81 and 100
The first thing to notice is that all the numbers in the sequence are square numbers. 25=5x5 36=6x6 49=7x7 64=8x8 81=9x9 So the next three numbers to be squared are 10, 11 and 12. 10x10=100 11x11=121 12x12=144 Thus, the next three numbers in the sequence are 100, 121, 144 The equation for the sequence is (n+4)2
100, 90, 81, 73, 66, 60, 55 It's a decreasing sequence 100-10=90 90-9=81 81-8=73 73-7=66 66-6=60 60-5=55
100, 90, 81, 73, 66, 60, 55 It's a decreasing sequence 100-10=90 90-9=81 81-8=73 73-7=66 66-6=60 60-5=55
It is: 34/55 times 100/1 = 61.'81'% recurring decimal '81'
66% of 81= 66% * 81= 0.66 * 81= 53.46
Average= (36+49+64+81+100)/5 =330/5 =66
49
144
Answer: 144, 169, 225 Explanation: 72=49, 92=81, similarly 102=100, 122=144
81-55 = 26
GCD of 81 and 66 is 3.
The Least Common Multiple (LCM) of 66 and 81 is 1,782.
The GCF of 66 and 81 is 3.