1 files changed, 12 insertions, 0 deletions
diff --git a/1553/CH16/EX16.4/16Ex4.sce b/1553/CH16/EX16.4/16Ex4.sce
new file mode 100644
index 000000000..e8120bb66
--- /dev/null
+++ b/1553/CH16/EX16.4/16Ex4.sce
@@ -0,0 +1,12 @@
+//chapter 16 Ex 4
+clc;
+clear;
+close;
+//let pipes be A B and C 
+t1=12; t2=15; //time taken by A and B to fill cistern individually
+t3=20;       //time taken by waste pipe to empty the cistern
+A1min=1/t1; B1min=1/t2; //part filled by A and B in 1 min each
+ABC1min=1/t3;           //part filled by all 3 pipes in 1 min
+C1min=ABC1min-(A1min+B1min);    //part emptied by C in 1 min
+C1min=abs(C1min); //absolute since the value is negative as it empties the cistern
+mprintf("Thus the waste pipe empties the cistern in %.0f min",1/C1min);